Headunit not working, but illuminating

RonRizz

Sounds to me like you have a date with your Multimeter. You obviously have an issue with 12v+. Remove stock HU, test for power at switched and battery. Try to ground at a different spot to be sure you're getting the right reads. You got a bad fuse somewhere..... Just because they "Look" good doesn't mean they are good. Test "em.
I would have to say theres nothing else it could be.

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SouthArk370Z

Excellent troubleshooting advice.
When I worked as an instrument tech, the "old guy" in the shop would always say "Make sure you have B+" (and "Make sure the o-n-o-f-f switch is in the o-n position").

Visually checking car fuses can be hit-or-miss. Put a meter (or other continuity checker) on 'em to be sure.

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bigaudiofanat

X2 Love my volt meter and don't do an install unless I have one. OP check your ground also reset the car by pulling the negative battery terminal off for a minute.

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