I need a put a set of tmps sensors into newly acquired wheels set. Called local place that usually balance wheels for me and they try to upsell me their aftermarket ones (for twice more than in Tasca P). I asked if they could install those I would bring. she said sure, but not sure if we could activate it... It makes me think: if those OEM Volv, do they need to be paired with car somehow? Is it suppose to be done before or after installation? Sorry if these are silly questions but I have no experience with factory dtmps.