I just got done following the Sticky on adding an amp and sub to my 07 bose equipped coupe. When I turn the car on I get a really loud buzzing sound coming from the rear. It won't stop unless I turn the key off or pull the RCA's out of the aftermarket amp.

I followed the directions and am using a Rockford Fosgate 500BD1. Can it have something to do with the amp and balanced inputs? I can't find anything online about those specs for the amp. Would trying a line out converter help any. It took me forever to get it all installed and I'm really frustrated at this point. I wish it was simple like every other car I've done this with.

 

i dont know how you hooked it up exactly because i have never looked at the sticky. but a lot of the time if you put the remote wire or any kind of power wire to close to each other or the rca's it will create a buzzing noise. try and seperate the wires farther away from each other and see if that stops the noise

 

No luck with trying that.
I guess maybe I'll try unplugging the 6X9's and seeing what happens since they are what seems to be making the noise.

I found an old thread where someone had the exact same problem but no one had a solution.