i put a full remote start/security system on my 07 the only pain in the ass part was programming a bypass for the chip in the key but i got-er-done and now it cranks everytime i hit the button. now i did have one issue with the locks. my APS996, i guess, had rest resistance on the lock wires. when the vehicle went to sleep after 30 mins and pulsed everything on the can bus network it would see the resistance and unlock the doors but only after 30 mins. i fixed the problem by isolating the lock wires with two relays one for lock and one for unlock. if you need wiring info let me know. i have the DEI tech sheet on the 07 in a PDF if you need it.