I just had the z2 installed and the install looks factory. I had given the installer the info on grounding the 2 wires and the cd. When the z2 starts it tells me the brake is bypassed but as soon as i move i lose the picture but as soon as i stop the picture comes back. It appears to be directly related to the gps. The unit was manufactured in 8/07.
I need to bring the car back to the installer on Monday and hoprfully this can be fixed then.
Thanks
Rudmeister