well I'm about to take my 2005 sierra to get my d3 installed. I dnt knw much about wiring so I'm going to have it installed. I bought all the modules in order to keep my steering wheel controls and bose. what should I aks the installer in order to have piece of mind that he did everything correctly.
Damn I wish some of the installers on this site were close to El Paso I would hire y'all in a second.
thanks for all your advice.