Auto Volume on Radio

[H2 Daddy]

My auto volume does not work either, but after reading about everyone's experiences with the repair, I think I will just forget about trying to get it fixed. The steering wheel buttons are convenient enough.

[H2 Daddy]

The auto volume in my Corvette is based on speed and works fine. The same thing with my last Ecalsde. If the other GM vehicles have systems that work, how come the Hummer system doesn't. I have come to the conclusion that GM makes great powertrains but the rest of their vehicles leave something to be desired.

[PAC]

Maybe GM forgot to run the speed sense wire to the radio?

Well, the wiring diagram for 2003 H2 does not show a speed sense wire going to the radio. However, the 2004 wiring diagram does show it going to the radio.

So this info may answer your questions.

Karl
www.pac-audio.com

[H2ummer]

Has anyone done the TSB for fixing the Auto Volume on the Radio either themseleves or at the dealer? Just wondering if it acutally fixed it, before I go through all the trouble of tearing the console apart.


Thanks,

03 H2 Pewter W/Lux, Delphia XM Radio