Weird speaker problem. Need help!!!

[kytahoe68]

I installed a pioneer touch screen that does practically everything. It works and sounds awesome except for the speakers randomly cutting off for no apparent reason. Everything will still work but I have no sound at all. I already checked every connection throughout the entire system. I also ran a dedicated ground to the head unit only. Still having the same problem. It's hard to troubleshoot because there's not one specific thing that causes it. Any ideas?

 

[08grey]

Wrong impedance can overwork a amp and make it clip. What speakers did you use.

 

[kytahoe68]

Actually my sub and amp work fine. 2 of my door speakers are sony and the other 2 are factory. They all go out except for my sub.

 

[DCT]

Need more info. What is the power source for the door speakers. It doesn't sound like a HU problem.

 

[kytahoe68]

The door speakers are only powered by the HU which is a pioneer touch screen. I think its 50 watts per channel.

 

[08grey]

Check all the positive and negative connections on the speakers they may be screwed up and sending very low impedance which will overheat the hu amp.


Most likely it's a speaker wire pinched to ground somewhere. I would remove each speaker ANd check the connection.
If that does not solve it then you will have to bench test the radio. Remove it connect it to a jumper pack or similar and connect a speaker and try to get it to do the same.

 

[DCT]

Was an adapter harness used? If not, Could be HU since all 4 speakers cut out at the same time. Unless whoever did the install screwed up all the connections/crimps. Connecting + or - shouldn't matter, it will just play speakers in "reverse" phase or whatever. Like others suggested, check connections at the HU. It's easier to get to first instead or removing all your door panels.