Anyone out there have the wiring for a 2002 Hummer H1 with the Monsoon system? Audio, VSS, etc? I am not looking forward to this, I have to move the A/C controls, some guages, build a bezel out of carbon fiber because the trim is carbon inside, extend harnesses, - I am gonna need a few beers tonight!!!!!

I might suggest you post the same question on the elcova Hummer forum under the H1 topics. It might help...
http://www.elcovaforums.com/forums/

OK, I got it all figgered out. The system uses a VW harness. VSS is one of two yellow wires behind the speedo. The other yellow wire is for the tach (good for remote start). The amp does not have a turn on lead, instead turning on when it see signal on the speaker leads, like the old school power boosters......

The reverse lights are a nightmare to get to, considering the whole belly of the H1 is armored or covered by a cage, so I just put the reverse lead to a switch.

Pics of the z1 in the H1...Please

As soon as I can.....