I own a 2004 Volvo S60 and installed a Clarion VRX630 stereo and DVD player almost a year ago. Recently I've had computer module failures that have caused soooo much coding on my car the brake, transmission, main and etc modules fail on my car. The dealership is blaming the aftermarket equipment and insisted the Volvo due to the relationship the modules have with communication was the primary reason the computer modules were failing. I will admin since the installation of the stock stereo the car is running fine, just a couple of days, but would like to hear if this has happen to anyone else recently. The aftermarket stereo was installed by a professional and both unit were working during the failures. Is there a grounding issue with aftermarket equipment or something that i missed? Thanks in advance!! Great forums!!