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Thats is great process to check. I will tonight when I get home from work. During the week it gets tough to get far in troubleshooting. I really appreciate the ideas. thank you

That is a great idea for troubleshooting. Thank you for the details. I do enjoy troubleshooting and am going to set up a test set for the amp and the outputs because it is easy to get to. Next will be the radio. I still am thinking its a ground allowing the wine and ignition feedback? I will...

Thank you for the advise. It seams like a big job and costly to change but I need to keep troubleshooting and figure this out. Again, thank you! I will get some Holy Water on stand by in my tool box. 😁

Yes you can hear music in the speaker along with the whine and the ignition going up or down when running. The right rear speaker works great with no whine or ignition sound.

Hello and thank you for the suggestion. I’m not sure what the ACM is?

I recently purchased a 2012 Explorer and had no sound from the right front door speakers. After removing the door panel I saw that someone had unplugged the speakers. I plugged them in and discovered that they have a whining sound. Here is what I have done so far. I have added two good solid...