i just ordered a d3 for my 2003 tahoe z71 with bose but without onstar.

i ordered:

pac os2bose and cm1

pac swips

metra 992003 gm multi kit

antenna adapter

cdi200 ipod cable

and the d3 of course

is there anything else i need for the install?

from doing many searches i think i have all the info i need to do the install. just to double check the green vss wire is going to be on a piggyback on the factory harness. for the illumination i need to find the brown wire going into the headlight switch. is this correct? also where can i find the reverse light wire? Thanks for all your help.

youll need something to cut out the rear dash support. and also some files for cutting the dash kits double din sepperator.but as far as parts you got it all man

have fun

anyone know where the reverse wire is. i have been searching the forum but no luck for the tahoe.

Reverse Light, lt. green, BCM, black plug, pin F

Actually the new metra harness' (GMOS-04) that we have have the vss, brake wire, reverse wire all on the harness. I was so happy the day I opened that wire harness

too bad i have the pac harness. any thing special to pay attention to when wiring and programming the pac swips?

1. Read the instructions a few times, so that you're familiar w/ it.

2. Be prepaired for the volume to quit working every once and a while.

3. Ill in the pac harness will not work.

what do you mean "ill in pac harness will not work"?

The ill wire in the harness does not switch the Z1 from day to night mode. You will have to catch a wire at the headlight switch or the convence cluster so that the AVIC will know that the lights are on. Which ever wire you use, make sure that it goes to 12V w/ the lights on and that it works w/ the auto head lights.

Got it. Thanks

i am about to recieve a d3 for my 04 silverado, did you have to cut anything out of the dash, and what installation kit did you use to mount the unit into the dash, and where did you get it.

If you could help me out id really appreciate it.

Thanks