Some of you may recall I installed the Delphi aftermarket version of the TNR800 some time back.

http://www.bonnevilleclub.com/forum/...=70694&start=0

The GPS has worked very well for me but as a few of you know I'm rather obsessed with the OEM look and feel. So...

I decided to replace the unit with an actual OEM version. As for user functionality, I have yet to find a difference. All the screens look the same, the OEM version uses the same antenna and will work with the Delphi aftermarket version of the map disc.

What I gained:

1. The front of the unit uses different symbols for volume and tuning.
2. The OEM version doesn't have "Delphi" printed above the CD/DVD slot.
3. The OEM version reads the VIN from the data bus and will display a splash screen on start-up specific to the car line (ie: Pontiac, Chevrolet, Cadillac, etc).

Of course I had to change the backlighting on the new unit to match the rest of the instrument panel. The part number for the new radio is 15800000. This still requires an external amplifier. Since I have the Monsoon system, this didn't pose a problem. From my research, there is a model available (although I don't recall the P/N) which can be installed without an external amp.

Swapping these reminded me of why I hated doing the first one so much. There is no room to work and getting the unit re-installed was nothing short of a huge pain in the butt! It must be worth it though 'cause I have a cool new splash screen... right??

One important item I found is the wiring diagram for the adapter in the original post wasn't entirely accurate. Although I thought everything was checked, it was late and I must have missed a couple of errors. Hopefully this didn't cause anybody a problem. These have been corrected and the diagrams in the original post reflect the update.

Here are a few pictures:

Looks just as amazing as the other unit....

Looks great Darcy.. nice to see someone else obsessed.

I had thought about picking up one of those, just for that reason of a nice look, but decided against it, due to the sq.


One thing that I may have done different was to use the factory clips on the side of the OEM radio. Much easier than trying to find and melt clips into the locations, and then screwing them in.

It was actually quite easy because GM for some reason had the square holes in the dash already. All I did was go to the dealer and buy the inserts (same as what'* used for the glove box screws) and snap them in place. No melting or guessing on position needed. I had originally considered the clips but attaching them to the radio would have been a lot more work. There are pictures of this portion of the install documented in the original post.

Thanks. I have a personal rule... If I can't make it look, feel and work OEM it doesn't go in my car. Speaking of that, I've made some good progress on that last mod I PM'd you about. More on that soon as well.

if only i could find a Nav with the "grey" buttons instead of the black, i would be all over that

Well.....

After much of the experimentation and research I've done into my current "in-progress" mod (as yet to be released - although I believe you know what I'm speaking of) we should talk! This may not be as far fetched as you think.

where did you order that radio from?

nice work Darcy!