Hi all...
Here is my sad story. About two months ago I spent the big bucks for the Z2 for my'06 Avalanche with OnStar and Bose adapters and the backup camera.
About two weeks after they installed the unit we were out after dark and I couldn't figure out how to dim the display. I went back to the dealer and the installer informed me that the Z2 will not auto dim, I would need to dim it manually every time. I found a link on the Avalanche Fan Club web site that gave instructions on where and how to wire it. About the same time the unit started freezing during the boot process. After s