A budy of mine ust bought a 2005 300 and asked if I could wire in a stereo for him as I've done lots in the past, I'm now finding out I shouldnt have said yes. Anyhow how does a guy go about installing an aftermarket stereo in one of these cars I have the dash kit a boss deck and the PAC cr2-chy4. We dont care about adding the steering wheel controls Im just curious as to how a guy wires in the PAC unit. It does have the aftermarket deck I read somewhere you need the pac unit installed in order for the aftermaket amp to even turn on because of something to do with the can bus. Ive never dealth with a can bus syetm and have no idea how much truth is in that and am curious how it all works. I dont currently own a 300 but they are sweet rides and do plan on buying in the future so the more I can learn now the better.