I am having trouble installing my after market radio on my 2006 hummer h3 everything is wire by the manual of the harness and it works good when the door on the driver side is open ones is close the sound shuts off , the harness I have is GMOS-04 is there anything i can do to fix this problem? what's the proper harness to get ?

 

Hummer is a very expensive vehicle so I don't think you should use an aftermarket parts on it.

 

put it back to stock and dont mess with the electrical system the radio is linked to the computer system and you are only going to cause problems for yourself

 

i have an 06 h3 and i put a touch screen pioneer deck in it, i bought the gm moduale and wiring harness it was pretty easy and no probems putiing it in other people have said tht it will work then show locked on the dash and u have to then take it to gm tio get it fixed but i havent had any issues

 

your GMOS-04 is bad, get another one. the radio delay is hosed in the GMOS-04