On Mon, Dec 16, 2024 at 12:42 AM, SheldonD wrote:
Sheldon:
Thank you for the fruits of your extensive research.? We have traveled down similar pathways and gotten very very close.
?
I suppose I could have detailed my search when posting but thought e101 might have access to sources 'ordinary' folks in the GM Forums and such . . . well you know, hope springs eternal.
?
crutchfieldonline.com was a good hit - the adapter one would purchase to connect their aftermarket radio to the vehicles' existing wiring harness.
?
This is important because it lists a donor vehicle, and the RPO: "OEM Radio Opt Umr FROM 03 2003 CHEVY SILVERADO 15766185" 2003 Chevy Pickup, RPO code ?is UMR
?
As well, you have pointed out the RPO and UMR. I have no idea what those letters represent.?
?
The radio shown is the spitting image of the one I've got in hand.
?
As I said, thanks for your search results.
?
GT
?
?
Gooey