or bad grounding. it could be that your speakers are the radio's source of
grounding.
"daytripper" wrote in message
> On Fri, 15 Dec 2006 21:47:49 -0600, "Randy Pape" wrote:
>
>>does anyone know if this is caused by a bad alternator?
>>when my car is running and i rev the motor i hear the revving through the
>>radio. thanks
>
> Bad alternator or diode therein is a good candidate. Other possibility is
> ignition noise from old cables. >> Stay informed about: noise through radio?