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