Did you check your fuses? I may be possible that you popped a fuse wiring to the incorrect harness. But I'm no expert.
Pull the give me a brake & hook all of the wires back up pre-install. If all lights now work it is your installation, provided you did not blow a fuse or fry a BCM. Do you have these instructions? http://www.images.gominigo.com/instructions-gmg_2005-2006_blk.pdf
