Do you have a power supply so you can try it outside the car? Make sure the yellow rgb cable isn't damaged because the N3 won't turn on without it connected
I connected the red and yellow (with those blue resistors) to the (+) battery terminal, the black wire to the - (neg) of the battery and grounded the unit.
I got no response from the display, yet, I did see the spark of applied current.
I also removed the theft deterrent front. I noticed the blinking security light. I then replaced the theft deterrent front back on to the unit, but it still didn't work.
Spoke with Kammy, he s