I have a friend who is looking to upgrade the standard AM/FM unit in his 2500HD (it's an 03 or 04) and I wanted to make sure that any of the factory 03+ CD players will work. I know that the HU's are deeply entangled in the electronics of the truck and wanted to make sure there wouldn't be any problems upgrading from AM/FM to the CD player, and if the 03/04/05 year-model HU's are interchangeable w/ each other. Thanks!

 

Should just swap right in

 

But you'll need a dealer to unlock it.

 

yes they will work only if you take them to a dealer to get it program to the truck ECM........otherwise they will lock and be use less

2004 Chevy LS
RC/SB
LM7 5.3L
4l65E w/SHIFTKIT,SERVO
G80 w/3.73

ADD ons: LS1 electric Fans,TB bypass, TB spacer, 160* Thermostast, K&N Cold air induction, Borla ProXcess Muffler w/Turndows, NitrousWorks 150 shot, HP Tuners Tune, 295/50r16 BF GOODRICH radials.

Future Mods 6.0L, patriot 5.3L Stage 2 head and cam kit, Vigilante stall, 4.10 gears Longtubes and OFY pipe, TNT N2O set up.

AGGRESSIVE MOTORSPORTS live life at full throttle......

 

Yes, but you need to make sure not to mix a lux and a non lux, and bose and non bose.

The dealer charged me $80 to re learn the vin on a H2 Nav head unit.