I actually have two Navigation Head Units that I want to sell,and I don't know which model or year Cadillac they are from.

The General Motors part number of the first is 25726565 and it looks similar to what's found in a 2005 STS.

The other is part number 10391240 and might be a DTS head unit circa 2003 or 2004.

Both were purchased off Ebay over almost three years ago, for experimentation which I never got around to doing, and both look to be in excellent condition.

I also have two Bose Amplifiers from 2005 STS. One is regular Stereo, and the other for 15-speaker surround.

10378759 Stereo

10378760 Surround

Feel free to make me an offer or at least help identify the two head units.

Thanks, Joe