hey all I have an 07 grand prix without the monsoon and onstar systems looking around online and on this website has not help much at all so far so I was wondering I am planning to replace the stock head unit with a pioneer deh-x3500ui and wanted to know which wiring adapter I need so I don't have to botch up the cars wiring. I really don't care if I keep factory chimes or not im looking to do it on the cheaper side so not needing a 50 adapter is a good thing lol I do want the steering wheel controls though I am very good at wiring but don't want to cut stock wiring if possible thanks in advance
