I think I actually need Metra GMOS-014 GM
-Losing the rear DVD for kids....NOT acceptable
Is there a DIY way around this?
You are correct sir, the GMOS-014 was the only one I could find to retain the RSE, the kiddo would not have been happy without listening to her movies. I've hooked it up and have had no problem.
However, if you feel experimental, there may be another solution. I want to point out, I have not done this. This comes from observation only, any damage or failure to operate is your responsibility!!!
It appears that the only modification Axxess did on the GMOS-014 to allow for the RSE connection was to add RCA jacks to the factory harness adapter they provide. The RSE signal does not go through to the GMOS
, just straight from the OEM wiring harness to the Axxess harness then to A/V inputs on the aftermarket radio.
On the wiring harness provided with the GMOS-014 the 12 pin connector pin-out is as follows:
Pin 8 - Right (red) speaker output from the RSE
Pin 9 - Left (white) speaker output from the RSE
Pin 10 - Common (black) ground from the RSE
The OEM 12 pin connector is as follows (sourced from the Roadie in this thread, I Need HELP with A wiring diagram for overhead oem dvd flip screen
(Sorry to source the OS, but that's where I found it.)
Brown/White - left audio goes to radio pin J
Green/White - right audio to radio pin H
Black/White - Audio common (use as a shield for the left/right audio coax) to radio pin K
Shield to pin C - Apparently not used on the GMOS-014
That radio connector C2 has pinouts as follows:
M L K J H G
F E D C B A
Connector Key between C and D
If the wire color is different on your vehicle, pins 8, 9 and 10 on the adapter harness should equate to pins H, J and K on the OEM harness.
You could buy a GMOS-04 and try to add these pins to their wiring harness adapter and see if they get a signal from the RSE. Or if you feel adventurous splice into the factory harness.
At $90 for a GMOS-04 and $130 for a GMOS-014 it might be worthwhile to buy a few pins and some wires. If you buy your HU from Crutchfield they sell you the GMOS-04 at 50% off ($49.95).
Had I known this when I ordered my radio, I would have tried the modification and saved $80.