I am getting a new car in two weeks and just got a used Z110bt off ebay. When I got it home I wanted to test it (to ensure it worked) on a CPU PSU. I followed a video I found on youtube of someone doing the same thing with the same head unit but when I attached the accessory wire to a power wire my cpu would start flashing on and off and in turn the head unit would do the same. Anyone have any speculation on why this is happening or maybe an alternate method of testing the head unit prior to getting my car in two weeks? Thanks.