If any of you are interested in wiring up any of you cars or trucks that did not have RAP availble here is a site that shows you how to build your own with a couple of relays and diodes. The page has several different wiring methods on it for Car audio RAP is near the bottom. It also has ways to wire you amps in stereo and switch to mono with a flick of a switch. It also shows how to wire up speakers with dual voice coils and swap from Parallel to series back and forth. Interesting page I found thought I would share it. Oh and it also has a basic remote start wiring setup.
http://www.the12volt.com/relays/page5.asp
http://www.the12volt.com/relays/page5.asp