I installed new speakers and an amp and now my head unit does not work, I checked fuses and everything is still good. I disconnected some of the speaker wires from the wiring harness at the head unit and i'm wondering if that could be the reason it is not working.
Well make sure that you didn't accidentally disconnect the power cables to your head unit. I have done that and it took forever to figure out what happened. I cut the wrong wire on the harness and it didn't work. Check both your power connections and your grounding wires. When my head unit was installed they grounded the unit to a bad place and it cut out every once in a while. hope this helps.
