Looking for some help on this one, got my Z1 install done and noticed it has been acting a bit weird lately. Unit was used but in good condition.
I did get the speed sense wire connected and the GPS antenna mounted in the stock location (shows good reception from most satellites at all times)
As I'm driving around, the vehicle position will be off by as much as a block or two, and then will jump to the correct position every couple minutes. I assume that this means the GPS can find the location correctly but that the accelerometer is doing weird things to the position in the meantime