glad they could help up there... i just have to say reading post from back when i first joined is pretty funny/weird to see.... that was over 700 posts ago!
Ok, working on a buddys truck yesterday (2006) trying to do the high idle like i have done on mine but I do not have upfitters and he does.. I found the BCP wire now looking for switch #4 (orange w/Light Blue Stripe).. I can see it coming out of the back and try tracing it but all the switch wire dissapear into a bigger harness... Where does #4 come out?
Found it.... To find the upfitters wires its best to just drop the bolts on the fuse box. As soon as I did they were sitting right there behind the box. With upfitters this is a 10 minute job. W/out 30 min job..