I thought the following post that I made over in the XC60 forum would be of interest to those here that have the Sesnus-based audio systems, especially the Premium Sound option and are trying to improve there sound or integrate the exisiting head unit with aftermarket subs, drivers, etc.

https://forums.swedespeed.com/showthr...=1#post1726771

I have measured the effects of several of the EQ and Tone adjustments and presented the graphs as the EQ results were not expected.