Took it to a local shop today. They were able to sort it out.
Apparently, it was actually my fault for wiring it up incorrectly in the first place. I burned out one of boards on the HU. The owner of the shop handled it personally (apparently he has experience with Z cars), pulled out all of the wiring, corrected my mistakes, and rewired it.
$200 never sounded better.
Never sounded better.
|