I know there is a lot of talent here and I would like to tap someone's intellect with this question. My '98 Ford F-150's radio has about the lousiest reception possible. Whenever I drive someone else's car or truck, I find they easily pick up AM stations that I get a lot of static on in my truck (in the same areas). Someone suggested my alternator is not properly shielded and that is the reason for the static. Is there any little fixes I can do?