Help with radio

[duckmnn]

Never have had a problem. Until I added another amp and more speakers . This amp is wired direct to battery no common wires with other amp. I'm getting alternator wine and fridge humming now! But it comes and goes . Its only in the new speakers and amp. The others are good. What's weird is I can go hours with no problems. Then it starts then it may go away maybe not just a hit and miss . While motor and fridge are both running . Only thing I've tried so far is unplug radio antenna .Any help be great

 

[Wylie_Tunes]

This amp is wired direct to battery no common wires with other amp.

There, you found the problem without any help.

 

[CliffA]

There, you found the problem without any help.

now you know you need to explain what a 'ground loop' is......:smt001.....

cliff

 

[LTD.330]

Add a ferrite choke to the discussion and the OP might have enough info to solve his problem.

 

[Wylie_Tunes]

now you know you need to explain what a 'ground loop' is......:smt001.....

cliff

Im going to leave that, and a detailed custom wiring diagram, to his amplifier retailer. :huh:

 

[duckmnn]

Just an update. All because RCa wires are new. Doesn't mean there good . Replaced them with another new set. Sounds great and no feedback.