Hi there,

Brand new to the site and hoping for some help.

Just installed a Z120 into my 07 Solstice and used the GMOS 04 to tie into the stock harness, and the Metra Axxess for the steering wheel. I have not done any mods to the harness, but when I start the head unit the sound stays on for five seconds and then goes off/mutes. Everything else works during this time. If I switch off the car and then restart I get another five seconds before it goes off. I unhooked the brown mute wire to see if this was the problem but no success. The only other wire that is not connected is the blue/white amp wire coming out of the unit.

Any suggestions.

Thanks.

I believe that the blue and white wire is suppose to be connected to the yellow harness wire.