So Im wiring the 02 miata bose hu into my car that as never had a working system in the first place. The main reason is I bought the car as a shell and never had a system in there.

Anyway everything is all wired up and lights up and whatever. Only problem is NO sound. Even with the volume all the way up theres nothing. Yes all my speaker wires are connected.

I noticed something strange. It seems like J in the wiring diagram has no voltage at all either in ACC or key on. Could a dead amp somewhere be my problem? I already checked the fuse and thats not it. I couldn't be that all the amps in all my speakers are dead, even then I would get some kind of sound.