No sound from Pioneer head unit car harness speaker connections?
Hi there,
I installed and wired a DEH4800BT head unit. It worked fine until recently; either some electrical work I did, or a recent thorough car cleaning appears to have mucked something up.
Now there is no sound coming from the speakers via the car audio harness connections. I tested and re-seated all the wires, and they seem ok. The speakers are ok - I tested them with a 9v battery and they all click. I also replaced the harness adapter. All fuses are ok.
I read on this site that it could be the pre-sound IC, which seems weird since external speakers on the RCA outputs work fine (!)
What's also weird is that I tested it with another old head unit I had lying around, and had the same problem.
Could it be the IC and I somehow fried it on both units?
If so, are these common to Pioneer car stereo models? Thank you.
Questa è una buona domanda?