well,im in the middle of doing this to a 2008 ext cab 3500 diesel ,im using gm factory parts,so far so good,the hardest part is im using a 2008 1/2 ton gas dash harness [ used a gm service manual and added the 6 extra wires],but you need everything,dash wiring-door wiring,door panels-door switchs,power regulaters,,ive also added factory
1.navigation radio
2.power locks
3.bluetooth
4.trailer brake controller
5.digital a/c heater controls
6.fog lights
7.back-up sensors
8.remote start
9.lighted sunvisors
10.homelink/garage door opener
11.2012 grille and bumper
12.cadillac/corvette remote fobs
everything works great,the hard thing is tearing apart a truck[seats ,carpeting,headliner,dash,hvac system,bed],,the only thing left is a rear power slider[i dont know if i really want one]
1.navigation radio
2.power locks
3.bluetooth
4.trailer brake controller
5.digital a/c heater controls
6.fog lights
7.back-up sensors
8.remote start
9.lighted sunvisors
10.homelink/garage door opener
11.2012 grille and bumper
12.cadillac/corvette remote fobs
everything works great,the hard thing is tearing apart a truck[seats ,carpeting,headliner,dash,hvac system,bed],,the only thing left is a rear power slider[i dont know if i really want one]