Just had the Pioneer AVICF90-BT installed by BestBuy - they did on the surface a pretty good job.
My FM/AM and HD Radio reception with the (Pioneer GEX-P20HD) is just awful. Vastly worse than my factory radio. Looks like the install-tech only wired the antenna into the HD Radio box, so my AVIC FM and AM options are non-functional.
Spoke to BestBuy today and they recommended, I get a Antenna splitter to re-enable the AVIC-FM and AM option. Also he recommended I get an antenna booster. He said it's quite possible my antenna has degraded. Is there any truth to this ? I have a 2005 Toyota 4Runner with an in-window antenna. I am hopeful this will help, but skeptical that it will be effective. Any opinions??