My 76 Aspen kicked the bucket last week, so I pulled out the HU, amp, sub,
rear speakers, and wires for the amp, and installed them in my 93 Dynasty.
Install was smooth and it sounded great with the ingition switch in the ON
position.

Turn the car on, and there is a slight whining coming from all 6 speakers
(not counting the sub). More so from the rear speakers. It gets louder the
faster you revv the engine.

All stock speaker wires were used for speakers. Front 4 are stock speakers,
rears are Boston 6x9's. For now I have disconnected the rear speakers and
the noise is only audible between songs. The noise does not come from the
sub. If you turn the volume up, the noise gets louder. HU is an Aiwa
CDC-x417, I did buy a wiring harness for this car, I used butt connectors,
there are no exposed wires and all connections are tight.

I was thinking it could be a ground problem, but I would really like some
ideas before I rip the dash apart again, the Dynasty isn't nearly as easy as
my Aspen.

Also, would it over load my deck to hook my rear speakers to the front
channel? They don't seem to be able to handle the bass when I turn it up,
but with just the fronts and the sub I can crank it (have Fade set to R 6)
and there isn't an issue at all.

TIA for any help.

Carl