Cheap radios with poor filtering may have some interference.
I ran an AM/FM and a CB antenna mounted on a small tap welded to a pair of vise grips that clamped to my mirror on a semi for years and never had a problem.
"But it does me no injury for my neighbour to say there are twenty gods, or no god. It neither picks my pocket nor breaks my leg." - Thomas Jefferson, Notes on the State of Virginia, 1782
Arguing with a truck driver is like wrestling with a pig in mud, eventually you realize the pig enjoys it.