When i key up to talk i get alight squeal only i can hear and my sirius radio causes a static sound. Then go's off and back on. No linear hooked up. The radio is a connex 4600 turbo peaked out.
thiers another thread about this same thing.... its pretty much you are going to have to replace your am fm coax with a shielded coax, or deal with it.... (dont have the radio on)
make sure talk back is off. maybe that will get rid of the squeal