[s-cars] Radio schematics?

[mlp]

Sounds suspiciously like you are about due for a new head unit.  FWIW, this
sounds like (a loud 'pop' when ever the unit was turned on, of volume
adjusted) the symptoms that presaged the demise and $100 core exchange in
one of my cars.  I was told it had something to do with the wear, and
failure of what ever it is that adjusts the sound level in the early (92 -
94) UrS radios.  I believe the latter MY cars use a different radio, and I
don't know that they retain the same type of volume adjuster.  Cleaner
wasn't going to do it, as the wear & tear had already taken their toll.

HTH
mike

>-----Original Message-----
>From: s-car-list On Behalf Of Marc Gorelick
>
>As long as this has turned into "Radio Day," how about a fix 
>for a loud 
>popping sound whenever I change the volume on the stereo? I talked to 
>another local S4 owner who tells me that tuner cleaner didn't fix the 
>problem in his car.
>
>Pity, since this seemed the obvious solution and I already have some.
>
>Marc
>