Radio problems

Hi:

I have a 1998 Ply Neon with factory radio & the multi-disc trunk mounted
CD changer. A few days ago the AM radio quit working. The FM was fine.
I thought that maybe the antenna lead had come loose so I pulled the radio
to check it out.
What I found out was that the 'FM Modulator' used to send the CD signal to
the head unit had crapped out. I ended up by-passing it and running the
antenna straight into the radio. Problem solved.

My question - Why would the modulator allow the FM signal though, but not
the AM? I would think it would be a 'all or nothing' scenario.

[SPS Special Performance Series Model CDC-625 apparently built by Audiovox]

~~Phil~~

 

That does seem strange. I too, use an aftermarket FM modulator that I
installed myself. It needs to have it's own power source to work. I
find that if I leave it on all the time, it does interfere with both AM
& FM reception. I installed a switch to get around this problem. When
it is off, it does not cause any problem with radio reception.

If your FM modulator has a power source, it mostly likely comes on when
the CD changer is on. There may be a relay that has malfunctioned,
causing it to stay on all the time.

-KM

 

fm radios now are the norm and they build the radios geared more towards the use
of fm and not am
u can actually unplug the antenna and pick up stations were am won't do that
unlessd u are real close to the station