[V8] Fuse #4

[dsaad at icehouse.net]

This also sounds like the failure mine had a few years ago. If so, it is
repairable for cheap.
The symptom - unit plays fine for a while, then no sound, but the display
remains lit and all switches and indications are that the unit is still working
- just no sound. You can verify this with a voltmeter on the amp relay turn-on
wire.

There is a wire on the back of the head that goes to the speaker amp relay in
the passenger footwell. This relay supplies 12V power to the speaker amps. There
is also a power antenna wire on the back of the head. They are both switched by
the main volumn switch, but the antenna wire does not pass through any other
electronics. The Amp wire however passes through a delay circuit and a
"thermistor" for some reason, and this thermistor goes bad. You can open up the
head unit, locate the thermistor and simply jumper it out, or you can move the
amp turn-on wire to the antenna output. This will probably give you some speaker
pop when you turn on the stereo however.

Dave

Quoting Tony and Lillie <tonyandlillie1 at earthlink.net>:

> Kneale,
>
> You are exactly describing what mine did about a year ago. It started every
> so often (about once a month). Towards the end the radio would play for
> about 30 sec before shutting off. I replaced the radio with another known
> good factory radio, and haven't had a problem since.
>
> Tony Hoffman
>