BURNING RCAs and frying headunits! Major help needed.....

[av8ter 10+ year member]

My friends blazer started doing the engine noise through the subs deal so I decided to do the grounding of the RCAs deal. Fixed the problem for like 5 minutes until we turned the car off then back on again. Engine noise came threw the subs once more and the RCAs running from his Pioneer 5100UB to his Powerbass Monoblock began to burn and smoke. We shut the car off.

We figured it was a fried headunit so we replaced it with a newer Alpine in hopes of it being a Pioneer specific problem.

We wire up the Alpine. Test it out. Plug in RCAs, and the RCAs began to heat up at the back of the headunit.

WTF did we do? Problem is scaring the shyte out of both of us.

Any Ideas?

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[gunz4me 10+ year member]

Your answer lies **HERE** in your other identical thread on the same topic.

It could also be a defective amplifier, but until you rule out the amplifier ground, your troubleshooting is like throwing darts with a blindfold on.