Before you get worried, open up your dash and look around - you might be pleasantly surprised.... depending on the trim level and other options on your van, it's possible that the wiring and plug are already there - just add the module and go... GM only made a few different wiring harnesses for these, and used them even if all the options weren't present....
If you don't have the plug already, then you'll have to work it out wire by wire ... in that case it would be invaluable to get the schematics and especially the pinout diagrams from the service manual.... Someone on the forum should be able to provide them for your year.... I can get them for you from my 04 manual, but not sure if there were any changes.....
If you don't have the plug already, then you'll have to work it out wire by wire ... in that case it would be invaluable to get the schematics and especially the pinout diagrams from the service manual.... Someone on the forum should be able to provide them for your year.... I can get them for you from my 04 manual, but not sure if there were any changes.....
