We just barely got the truck and the first thing we did was look for a double din deck to replace that ugly stock stereo with the worn off buttons and nobs. (Looks horrible!) We found a good deal today at Best Buy on a JVC touch screen DVD. They told us that we'd need to get a harness which they said was $110. Our truck does have the Bose sound and OnStar. They wanted $120 for the install and of course $20 for the mounting kit. I'd imagine I can get this stuff for cheaper. Any ideas where? I'd also like to keep the steering wheel controls. This is a separate adapter right? I'd like to just do it myself if I could. Any how to's anywhere? Thanks in advance. This is a great forum.