Jt321
10+ year member
Member
Got it to work guys! On the 03 gmc sierra the red ignition wire on the facotry harness has no power running to it. You must get it from another source. Like the fat white wire under the steering wheel. Its working fine and dandy, thx everyone for helping!
Oops this reply is for the thread "Problem installing alpine HU."
Oops this reply is for the thread "Problem installing alpine HU."