Tnr Nav P/n 20792736

rwatford · January 4, 2010

I've come across a factory nav unit with the above part number. The guy who has this runs a small stereo installation shop and he's thinking is was removed from an '09 Silverdo although he admits he's not positive as he doesn't do much install work himself. Anyone know what this part number represents? GM P/N is 20792736 and Delphi P/N is 28181381. Other numbers on the unit are "09 GMT966BTNAV2".

Dr Len · January 5, 2010

Post a pic. Most Likely it can be reprogramed to work with your truck. What year is your truck?

rwatford · January 6, 2010

My truck is an '03 Tahoe LT with Bose and On Star. I'll post pics tomorrow.

HawkeyeOC · January 6, 2010

Most (maybe all)Delphi units were not installed in GMT-900 trucks from '07 up. Denso made those. I think you are looking at a unit that could have gone in an Acadia or similiar crossover.

I am pretty sure anything from '07 up won't work with your '03. Everything is different.