Quote Originally Posted by jmvotto View Post
is the whine there with the amp gains turned all the down? is it a new amp or a refurbed amp?
The amp is brand new. There was no high pitched sound unless the engine was running.

When I turn the key to "run" position, I get the high pitched sound for 10sec and it stops. When I turn the engine on the there is a whine that is added to that high pitched sound. ANNOYING!

I ended up grounding the head unit to the amp and its gone.

I really appreciate your help guys. Forums really help for times like these.