I changed amps recently and it's making a high pitched noise when the car is running. I have the amp grounded to the chassis in the trunk and the remote on is on fuse#7. I had no problems with my old amp. I'm grounding to the same place, all wires & connections have been checked, and the remote on is from the same source.

My guess is that the new amp is more sensitive and the remote on is picking up the ignition signal. Any ideas how to solve this issue?

 

from my understanding (and self help) you have to run the remote seperate from the -/+ speaker cable.... in my example... +/- speaker cable, running from the boot, on one side of the car to the deck and the remote on the other... correct me if im wrong...

 

find a new ground.

 

It's not the ground, I tried several locations on the chassis and it still picks up the noise. Where else can I hookup the remote on?

 

with the wrong ground picking up motor noise is a frequent occurence. where is it grounded to now?

 

I tried grounding it to the stock bose amp braket, the metal sheet under the stock sub, and part of chassis under the trunk mat & black plastic cover near the rear right fold-down seat.

 

Any suggestions on where else to wire the remote on or if my ground isnt good where to ground?

 

Put ferrite chokes on both power leads, close to the amp. You may also have a ground loop with the input wires. try breaking the ground at one end or the other of both inputs.

Greg

 

try buying some quality rca cables that are shielded. also do not run the power wires next to the rca cables and also add another ground, or a bigger ground or move your ground to a new location. try running the ground all the way back to the battery. 99.9% of all electrical problems are ground related.

 

thanks for the suggestions guys. i will give them a try.

 

It was my RCA inputs...a ground loop isolator did the trick. Thanks for everyone's help.

 

I had a custom car stereo business 20 yrs ago, first car after my trans am and corvette was a mb 380sl .... alternator whine everywhere... ground loops can occur anywhere, but always look at the more sensitive lines first, i.e. the lower voltage lines. most amps have a case ground, but the rca cables usually are grounded also. when you have a high power amp, you must ground it's case or at least through the minus power line, that means usually you have another ground connection through the input shields, but all you normally need is the cable shielded at one end... i'm glad my suggestion worked.

Greg