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    1. #36
      Member Hong Kong's Avatar
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      ggleavitt - Im happy to hear that you are sadisfied with AUX. R9 cut only signal from AM modulator to main unit nothing else.
      I think that no one use any more AM mode. Of course when you plug audio source signal is accepted and vice versa. In
      any other way will be some intereferences or background noise or signals. Schematics I supose is very difficult to find.
      The only way is to read CHIPs on board, find what function doign this chip, looking for input/output signals ect...
      When you place cable in middle box pls. made some photos for everyone.
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    3. #37
      Member ggleavitt's Avatar
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      Thanks for response, now it makes sense why the AM does not have sound on it's own but FM1 and FM2 do. It's good to know as there are still people who listen to AM radio here in the US and it is one thing to consider when doing this job. I have a 3.5mm male to 2 RCA male 20 ft long pre-made cable that I ran from the radio through the headliner and down into the glove compartment. There is about 5 feet spare so maybe I'll take it to the center console but for the moment I'll leave the cable where it is. Once I decide a permanent mounting place, I'll take some photos. Works great and thanks again for posting this!

    4. #38
      Member Hong Kong's Avatar
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      If you dont cut r9 line (not resistor but line came from R9) as soon you remove source of signal / music
      you will be able to listen AM radio mode - but 99% of people dont listen AM any more.
      To explane to talibans AM mean Aplitude modulation and FM means Frequency modulation.
      AM mode is used before they invent FM mode.
      One friend told me that he didnt cut R9 line and he dont have any background music or interference
      as soon he atach signal from Mp3 player.

      But trust me it will be totaly ugly when Mp3 stop or you pull it out to listen this AM radio
      bcs. if you are in town AM sometimes can be disaster of noice and scratching sounds.

      I cut r9 line and I never use AM mode will be the same to back to 1960' with sound quality.
      Our cars dont deserve this.
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    6. #39
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      Exclamation Important note !!!

      IMPORTANT NOTE:

      Im kindly asking everyone who is doing the same work to take care to NOT place audio cable from modules to
      glove or middle box compartment in any vicinity, crossing or touching any of AIR BAGS in our cars.

      Please take care that AIRBAGS must be avoid and you can easily find a route to middle box or to glove compartment
      avoiding airbags going away from them, under the seats, on middle row, under the plastics under the door ect.

      I will in next days try to made some photos where is the safe to place audio cable without going near Airbags.
      I will pull some plastics near doors to be more clear. Its easy job - pulling out plastics fantastics covers.

      Drive safe and enjoy in music. Sorry that I forgot to mention more visible (i do once) this important thing.
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    7. #40
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      Hong Kong, thank you for sharing this mod with us. I just did it and it took me an hour. I went ahead and cut the motherboard circuit by "R9" as you had indicated...works great!!!
      If anyone has any ideas on how to route the wire to the front please let us know. Thank you.


      UPDATE: I was able to route the aux cable. I just moved it to the right of the headliner, and then all along the weatherstrip. Once I reached the front pillar I removed the access panel to the right of the glove box and then routed the cable right into it. Took 5 minutes.
      Last edited by nelaco; 06-22-2014 at 08:12 PM.

    8. #41
      Junior Member SullyE's Avatar
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      Thanks for the update nelaco... I'll keep that routing in mind when I do attempt this mod. I'll get to it in about a week or so. I have a week off work coming soon, so I'll try to do it then.

      Not sure how you did it in an hour... but congrats! I'm expecting it to take most of a day, but that's because I don't want to F anything up.

      Take care.

    9. #42
      Member ggleavitt's Avatar
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      As Hong Kong noted earlier, one key aspect of this work is to use a very small tip soldering iron. If you go into this with a chisel tip cheap-o iron from the 'Shack, you're not going to be at all happy with the result. And, if you don't know how to solder reasonably well, best to take the radio unit with parts and instructions to a local TV repair shop and have someone do it for you. It'll be worth the time and effort. This job is NOT the place to learn how to solder. As far as routing, Hong Kong is correct in being aware for where the airbags are in this vehicle. They literally run the length of the roofline on both sides from the back of the rear side window to the dash (think curtain). There are probably 4-5 ways to do this and hopefully someone will document the safest and most reasonable route. On another note, I did find a pretty decent flush mount connector, have one on order and will post photos for where I put it when all is said and done: http://www.gromaudio.com/store/acces...cable_2ft.html
      Last edited by ggleavitt; 06-23-2014 at 01:41 PM. Reason: typo

    10. #43
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      Im really glad to see all positive feedbacks but guys I have tested something that even new dash board display in new
      xc can be jelaous...hahaha

      I tested today on Samsung Galaxy III. MUSIC VOICE COMMANDS and its work great Yeeeeeeeeeeeeeeee

      Play. Stop.Forward.Back. ect. Even command Blondie Stop
      working )))
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    11. #44
      Member ggleavitt's Avatar
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      As an update, I did get the gromaudio flush mount connector (item in post noted above) and installed it in the same place as the 2007+ (top rear of cupholder). Not smart enough to post my own photos but you can get an idea of where this is by the following link: http://ww2.justanswer.com/uploads/bl...2946_volvo.gif . Used a few drills up in size to get the fit right (31/64 [12.3mm] was the last one), pushed everything down tight and did a drop of glue on the other side just for the heck of it. Connected the male 3.5mm jack from the 20ft cable I ran a week or so ago from radio to center console and taped them (again for the heck of it). Everything is buttoned up now and it works like a charm.
      Thanks again !

      **Update to my update, 7/28/14- Had very poor luck with the gromaudio flush mount connector, it is of poor quality and flush mount jack does not allow the audio plug to go in solidly. Ended up replacing with a flush mount adapter from a kit (iSimple IS335), much better build quality but has a male connector on the other end so you'll need a female to female adapter if you use an RCA female to 3.5mm male cable like I did to get from radio to console. FWIW, still works great and the sound is excellent !
      Last edited by ggleavitt; 07-28-2014 at 09:16 PM. Reason: update to note poor quality gromaudio product

    12. #45
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      Thank you for posting! Great write up!

      I just did the mod and is working fine, except for the R9 cut. My 2004 xc90 has a different version of the board (see pics). I followed the instruction and pinpointed the two .22 50v condensators C301 and C401 where to attach the left and right audio input and it is working great. Even though the layout is different, I took an educated guess and also cut the R9 line to C14 condensator, but this is not working. I still can hear the AM radio in the background.

      I'm posting some pictures of my board and any advice/help is welcomed before I start butchering my board.






    13. #46
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      thanks a lot for such a good guide

    14. #47
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      Hi Guys and little late reply...Im happy to see that many of you just DO IT.
      After many months this AUX is working perfect and was tested good.
      Enjoy in preferred music and sound in your car...
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    15. #48
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      I just did mine and it works!! Thanks!
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    16. #49
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      Xallenx1 some photos for everyone. Im glad that so many of you DIY. Nice Christmas and Happy New Year with
      preferred music in our cars...
      XC90 2.5T VOR AWD 2006 320.000 km
      Proudly GUINNESS WORLD RECORDS and VOR XC90 2.5t Nr. 615 from 1574 Volvo's 31.03.2019 UK
      + 5704 km longest distance traveled to #Volvo600 UK meeting.

    17. #50
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      Thanks for great guide HongKong. I tried it, but it wasnt a success...
      First of all i think i manged to cut the wrong "line". Not the R9...

      See image. I cut the wrong place, where the arrow is. Is there any way to "fix" this? The head unit is not turning on at all, so im not sure if that is the only reason, or something else? Any ideas?

      Thanks!


    18. #51
      Member ggleavitt's Avatar
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      Unless you have some experience in doing super small track repair on PCBs, I would take it to a reputable TV repair shop. Not sure if this is your problem for not powering up but that's the easiest way to put it back the way it was before.
      2005 XC90 B5254T2 019 199k
      2008 XC90 B8444S Sport 452 130k

    19. #52
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      Hi. I have a January built 2007 xc90 v8 with dynaudio system. Went to attempt the aux upgrade (RCA solder in job) but when I pulled down the rear plastics to expose all the electrics hidden in the roof I found none. Is my system different. Do I just lash out and buy a Bluetooth adaptor. Seen on eBay some other inline adaptors but not sure if they will work with my setup. eBay descriptions don't state my head unit just year of the car. Help


      Anthony bossy

    20. #53
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      buzz

      I did the aux mod and works great except if I have the aux plugged into a device and then plugin a usb charge cable from the cig lighter adapter to the device, I get a static noise like a ground loop buzz. Has anyone else had this issue?

    21. #54
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      Quote Originally Posted by josetorre View Post
      I did the aux mod and works great except if I have the aux plugged into a device and then plugin a usb charge cable from the cig lighter adapter to the device, I get a static noise like a ground loop buzz. Has anyone else had this issue?
      Sorry for very late reply...yes cheap chinese chargers produce noise as filtration of voltage is poor. I have original Samsung charger and no isuee. You can find better quality chargers for any cigarettelighter plug...

      Sent from my typing machine Olimpia
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    22. #55
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      Quote Originally Posted by Legokingfood View Post
      Hi. I have a January built 2007 xc90 v8 with dynaudio system. Went to attempt the aux upgrade (RCA solder in job) but when I pulled down the rear plastics to expose all the electrics hidden in the roof I found none. Is my system different. Do I just lash out and buy a Bluetooth adaptor. Seen on eBay some other inline adaptors but not sure if they will work with my setup. eBay descriptions don't state my head unit just year of the car. Help


      Anthony bossy
      Im really sorry to see now your problem. I will check and as allways tried to help. As I know already over 18 owners made it with success and the only problem they had was cheap chargers powering usb sticks mp3 players or phones...if phone is without cigarette lighter charger no bzzzzzz. Quality filtration need for chargers. Most chinese crap chargers dont have it for cars. I open many...simple noise filtration unit cost few bucks. Installed behind cigarette lighter plug so simple...

      Sent from my typing machine Olimpia
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    23. #56
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      Decided to save a few bucks and get the aftermarket centre speaker mount DVD player now. That way I can get reverse camera, gps, Bluetooth media and hands free all in one. It doesn't look as classy as the oem set up but I think it's less trouble and cheaper than getting used parts to option up our car. Has anyone had any experience with the aftermarket speaker mount system. About $850aud on eBay.


      Anthony bossy

    24. #57
      Junior Member zlead's Avatar
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      very good wireup, excellent work Hong Kong

    25. #58
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      Hi Honk Kong
      What a great effort you have made with this very detailed write up, thank you for showing us how we don't have to be held to ransome by Volvo every time we want to improve things with our cars.
      Unfortunately, I am of the clutz class when it comes to electrical work and just looking at all your various electrical board photo's I feel quite dizzy and there is no way I can even contemplate this work.
      My situation is that I just need to be able to connect my Iphone 4 or iPad to the iPod input socket and to just play from my mixed selection on Andora, is this possible or is there more to it than that
      Thanks again

    26. #59
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      Im really happy if you found usefull what I learnt and done diy all this years and many really many problems with my xc but very common as you can found it on any worldwide volvo forum allways the same bad quality parts made for Volvo house by others...

      Anyway if you live in usa if my idea is too complicated for your experience with soldering im suggesting you to purchase simple module mentioned before in some posts here...I dont remember now name but other members can help quickly...its plug and play behind radio unit. If no one reply with name I will soon. Regards.

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    27. #60
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      Problems With My Radio

      Hey guys sorry to bring up such an old thread but I was hoping someone could give me some advice here.
      So about a month ago I attempted to add the aux cord to my car. Everything was going well until I attempted to put everything back together. I decided I should test it out first before putting everything together. I had a friend hold up the antenna with it completely plugged in. When I turned on the car the radio unit would not turn on at all. After some fidgeting with the positioning of the antenna I was able to get the initial screen showing that it had turned on. However, the screen would go black and no sound would come out. Only the menus would work. Also when I attempted to change the volume the meter would show up but no bar showing where it was as. I decided that I had probably messed up so I went online and bought a whole new antenna unit. Same Problems.
      After some reaseach it seems that people have similar problems when their ICM was broken or there was problems with a fiber optic cable around the ICM. Because I never went around the ICM I assume that it is probably a problem with some fiber optic cable around the antenna. What I'm wondering is if there are any ideas out there about what the problem may be? and if so what I can do about it?
      Thanks a ton in advance and sorry for the long winded statement.

    28. #61
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      I have read that the radio components mounted in the roof are ground contact. It has to be installed for it to be grounded. Although this is a old reply I'm assuming this is what you found to be the issue.

    29. #62
      Junior Member Here's Johnny!'s Avatar
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      Hong Kong, your posts overall are excellent. Thanks for your information and detail.

      As an alternative to your method, would something along the lines of intercepting the CD player output possibly work? Like this, in concept?

      Thanks again...

    30. #63
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      Quote Originally Posted by Hong Kong View Post
      Im really happy if you found usefull what I learnt and done diy all this years and many really many problems with my xc but very common as you can found it on any worldwide volvo forum allways the same bad quality parts made for Volvo house by others...

      Anyway if you live in usa if my idea is too complicated for your experience with soldering im suggesting you to purchase simple module mentioned before in some posts here...I dont remember now name but other members can help quickly...its plug and play behind radio unit. If no one reply with name I will soon. Regards.

      Sent from Casio Data Bank 128 Kb 93'
      Thanks again, I did just end up buying a lead and plugged it directly from my Ipad into the socket on the central console then set the sound system to Aux, it was just that simple!! Now I have good quality sound listening to anything I want through Andora

    31. #64
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      audio suddenly disconnects

      I was able to follow your tutorial and was successful. However, I was wondering if anyone else has encountered this problem. In many occasions, while listening to music from my phone, the audio suddenly stops and in order to make it work again, I have to physically disconnect the aux cable from the phone and plug it in again for it to work. Perhaps the solution could be found if one understands what takes place when connecting the aux line to the phone for music. Does it have to do with some type of impedance and if so, what to do to allow for a constant connection.

      Any thoughts?

      Thank you.
      Last edited by Gerardor79; 04-20-2016 at 10:36 PM. Reason: unclear

    32. #65
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      No its happened bcs CEM is sending OFF signal to many modules as Radio, Bluetooth MUTE AEM module for example I have and the same happened to me. For Volvo this is normal. Many times happened only on Bluetooth sound. I have AEM module original VOlvo installed for audio alarm mute remote control access ect...
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    33. #66
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      Premium Sound option....

      Hi,

      I've got a 2005 XC90 with the Premium Sound option.
      Is this mod the same, or is the unit described by Hong Kong different?

      Zep..

    34. #67
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      A lot of noise coming from AUX in

      Hi HK, thank you for your time in writing this awesome write-up. I have done this mod and am able to get the music playing thru AM, with R9 cut.

      My setup i as follows:
      - Shielded mic cable, about 6 meters long, soldered to REAN gold plate connectors, female at FM tuner at back of car, male to female to center console.
      - Belkin Car Connect bluetooth kit.

      Without anything plugged in, I am getting good FM and no AM, which was expected.

      When plugged into Belkin Car Connect, I can hear bad noise thru FM and AM. Sounds like high pitch noise that i faint in the background which you can hear when music gets softer. This noise is louder when i turn up the volume on the head unit. I get this noise with both engine running and also when engine is off. When engine is running, i will also hear an additional noise that follows rpm of car.

      Did I do something wrong, or is there anything else that i should ground to eliminate these noise?

      Any help is appreciated!

    35. #68
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      No you did right installation like I know over 30 installed like this.

      Problem is charging unit for phone or MP3 players in your cases Belkin. Cheap CHinese crap without proper
      filtration of DC doing this sound. Try with few chargers or find someone who can built
      in electronic better noise suppresion but there is not so much space in cigarette lighter
      chargers. I tried with original Samsung for S7 and its better. Only this is reason.
      There is also car noise supression filters you can find it in cars shops too. But remember
      only problem is power chargers or supply to Phone, Belkin or bluettoth units.

      If you attaching mobile phone without charger you must have clear sound without Belkin.
      Last edited by Hong Kong; 10-28-2016 at 04:02 AM.
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    36. #69
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      Zep66 @

      Its the same board dont worry. If not make clear photo I will tell you where to sold 2 L and R wire and ground.
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    37. #70
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      Quote Originally Posted by Hong Kong View Post
      No you did right installation like I know over 30 installed like this.

      Problem is charging unit for phone or MP3 players in your cases Belkin. Cheap CHinese crap without proper
      filtration of DC doing this sound. Try with few chargers or find someone who can built
      in electronic better noise suppresion but there is not so much space in cigarette lighter
      chargers. I tried with original Samsung for S7 and its better. Only this is reason.
      There is also car noise supression filters you can find it in cars shops too. But remember
      only problem is power chargers or supply to Phone, Belkin or bluettoth units.

      If you attaching mobile phone without charger you must have clear sound without Belkin.
      Thanks HK, yes i think the problem is with the Belkin. I tried plugging in directly to a phone, there is not buzz when no charger is plugged in. When i plug into my Amazon basic 2.1amps charger, I hear the same buzz i have on Belkin. I am thinking of building a ground loop isolator, using 2 transformers, or get one. What do you think?

      Also, is there a way to keep the 3.5mm jack plugged in and not interfere with FM and the radio take 3.5mm feed only in AM mode?

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