Aftermarket Radio with Bose amp clicking noise.

[bbroecker37]

I have a Pioneer 4200nex and I get this weird clicking noise coming from the front and rear tweeters only. I do have a good ground and its connected to a bolt that goes into the tube running through the dash. The noise doesn't play when the car is in ACC. It does play when the car is in the "On" position but no engine and with the engine on I get the same noise. Doesn't matter if the volume is up or down it just stays the same. I tried leaving the antenna unplugged but still no. So that makes me think one of the car computers is sending it RF radiation somehow through the wires. So I installed Ferrite beads on the Yellow, red and orange wire. This did nothing so I installed them on the RCA cables and still nothing I really don't want to use a ground loop isolator. I heard they reduce sound quality and are just a band-aid. I want to fix the problem from the source. I'm about ready to give up but it might be my amplifier? Any help would be greatly appreciated!

Also, when I turn on my lights (doesn't matter if its the parking lights or low beams) I get a high pitch but not that noticeable noise.