i just removed the aftermarket dvd unit out of my 06 hummer h3 and installed the factory one because i was suppose to trade it in today but now the car wont start. i tried to get it towed but the it wont shift into neutral! i dont know what to do anyone have any ideas? there is also a black n red wire coming from the steering wheel, and a black/white wire and blue wire under the dash that have been disconnected by my brother and he dont remeber what was hooked up to it. there is also a black wire comin from the computer that the installer has that is not connected under the dash.

 

Mine for the second time would not start yesterday. I contacted Hummer assistance via onstar and after ten minutes the truck started had a diagnostic run via onstar and it could find nothing wrong. Plenty of gas and truck was level.

 

i did that and it said computer disabled

 

Maybe you triggered the passive anti theft system.

 

had a problem with mine...it wouldn't start some mornings but after waiting about 10 minutes it would start. Finally took it to the dealer and it was an anti theft/alarm system problem. Somehow water had leaked in from the onstar speaker hole and got into my electronics. Costed about 200 to fix

 

is that the only way to fix the anti theft is by taking it to the dealer?

 

If you need to get it into neutral than pull the silver trim bezel attached to the shifter boot, up... It is locked into place with plastic tabs, once it is up you will see the base of the shifter mechanism and a yellow button, the button is the disconnect for the shifter to get it into neutral...

As far as the radio issues and what not... I'll leave that to someone else to chime in on... I'm a mechanical guy not and electrical...