"tim bur" <dbrider@cac.net> wrote in message news:42B36287.AD2E464E@cac.net...
> the radio has a wiring harness coming off the bac of it and usually
> there is a black box on the power that is the size of a ice cube and
> that's the box i was referring to


That box is a noise eliminator... RF choke is
the proper term. It could be open... ohm it.
It should look like a dead short.
__
Steve
..