Hello all, newbie here. I just purchased a 2007 Avalanche and love it. The truck came with one key and a replacement key FOB, by Dorman that only has the horn button and the lock/unlock option. As I was going through the check mark button options on the DIC, I noticed it gave the option to turn off or on the Remote Start option. I didn't know it came with remote start. So I go digging through different sources on the old interwebs, and it appears that RPO code AP3 says the truck has remote start installed after all, I just don't have a key FOB with the option for RS. Can I buy an aftermarket replacement through Dorman and if so, will it need to be programmed by the dealer? Or Should I spend the cash and pay The General? The FOB is acting up, but when it works, the doors lock and unlock, the horn blows, but no button for RS, so I'm looking to replace the FOB anyway. Full disclosure, I'm a 33 year veteran of the aftermarket parts biz, I can buy a Dorman remote for around $50, and have been told by my GM parts contact that an OE remote would be around $90. Any insight? Will I need to pony up the cash for a program through the dealer?