Hull 724. Picked up in January. Ran into a few snags but nothing OTT and I couldn't handle EXCEPT one. There is a humm coming from the speakers when I use Blu tooth on the Furrion radio. I've had that radio out so many times trying to isolate the problem and I would really appreciate some help. First I figured the hum might be from the solar connectors...they are in the same box and carry serious electricity. Alas, no. I flipped the solar panel switch and the hum remained. Just for good measure and because I like to organize rat's nest I wrapped the solar electric cords in copper tape to prevent electric interference from bleeding into the Furrion radio.
The next thing I tried was to fix the ground loop thinking that might be the cause of the hum. I bought a 30 amp noise filter https://www.amazon.com/Install-Bay-IBNF30-Noise-Filter/dp/B00691PDQK but that didn't work either...even after grounding it to the head unit housing and then, when that didn't work, running a ground wire from the receptacle ground and using that.
I thought maybe trying to use the black ground line from the Furrion but I don't think that would make a difference. I might just have to deal with the hum.
Would really appreciate your help. Thanks all!