jmm121783
Searching for the next sunset...
Joe, if you can the up fitter book it will tell you or download, it will explain a lot of the wiring.
Rear door locks are usually unhooked by taking the rod out or just disconnecting the rod, sometimes you will find the buttons and sometimes you have to order the little pieces of plastic, also the the door candle cable is usually disconnected , just have to hook it back up to the door handle. Rear windows just need new switches, the switches that are in there are missing components to let the rear passengers use them. As far as the speakers in the rear, if they are hooked up the you should check the wiring out under the dash by the floor, they may have been used for a radio and never hooked buck up.
The DIC can be added, I did mine, just cut the hole to hole the switches and plug it in, radio controls can be added to the wheel or entire wheel can be replaced with them. Fog lights you need the entire mount and light, need to see if wire is available and would need new light switch. Mirrors you will have to check the plugs that are there to see if they will match up with signal,folding mirrors. Dimming mirror will only work to dim and compass, temp gauge to work is a programming thing along with DRLs and a few other things.
I'm not sure on a rear camera but you would need wiring harnesses for rear climate and media. Center consoles can be added but you would need the harness for that also. A third row can be added, the bolt hookups are under the vinyl matting, and to add carpet the right way all seats need to be removed.
To be truthful, you saved a lot of money buying one, just the basics but by the time you add everything and get things programmed by the dealer to work it's going to cost just as much. You should have spent the extra and waited and looked for what you wanted in a Tahoe. One last thing is the spotlights, they make kits so when removed the cover the holes, just remember to seal really good. Check your light housings, if they have holes in them from hideaways, make sure they are all sealed as well. Hope this helps a bit. Also look inside the passenger side wheelwell behind the headlight, there may be a headlight flasher in there also. I'm still adding to mine, looking for the headlight flasher and push bar. Also from MI now in NC.
Cool buddy I appreciate all the info and breakdown and too bad your not still in MI. I agree I bought these trucks for the reason that they would be cheap and hopefully well maintained. I love the truck dont get me wrong, I just would like to mold this thread into a powerhouse of information for a new users like me to reference and start going down the list of mods and fixes to get the truck how they want it! I love that a lot of people are already suggesting a bunch of stuff to have added which is exactly what I wanted. So as this thread continues to expand I will try to edit the original to have more and more of the information there so its easy to find within this thread.
On another note, I just realized most of my dash lights are not "working" I would venture to guess they function fine but the bulbs have been removed. This includes Check Engine Light, Cruise Light, traction control and a few others I'm not remembering....ANYONE ELSE have this weird, somewhat concerning issue?