It warmed up a little this afternoon and I was able to mess with it. I pulled the seat track bolt and scarped the track down to bare metal as well as the underside of the bolt. Then I attached a new ring terminal and sanded it down to bare copper. Unfortunately that didn't help. I was getting some static upon start up so I decided to move the remote wire. I pulled it out and isolated it from the other wires and still the same problem. I pulled the HU from the dash and then I moved them around and I did notice a slight change in the pitch of the sound. I didn't have time to pull the center console up to seperate the power line from the RCA's and Speaker wire.
The thing is when the unit is at 01 on volume there is no hum, it only happens at 00 or when switching between EQ setting or radio stations. It seems that when the unit should not be putting out a signal is when I get the hum/hiss. I realized that the problem didn't occur as long as at least one set of speakers were directly connected to the HU. I will try that first and see what happens before pulling up the Center console.
I was wondering if that solves my problem temporarily, can get attach a ground loop isolator directly to the HU speaker level outputs?
