Amp or Head Unit?
Can anyone confirm my thoughts to be correct?
If you have multiple speakers doing the same thing I would lean towards the HU being the issue, but to be honest without swapping out each item it would be tough to rule it out.
I would troubleshoot in this order.
Swap the speakers as I mentioned and see if the issue "travels" with the suspected blown speaker.
If that doesn't work, you will have to spend a little money. You could either look for a used monsoon amp or pick up a cheap HU and wiring harness. I would pick up a HU first, but that's just me. The reason is, we know these radios are a weak link.
This is just how I would go about it.


