I had my CB unhooked for a few months but left the cable running from my mount to inside the cab. At one point it came unscrewed from the mount and got burned on my exhaust pipe, melting the rubber coating off. I have it covered in electrical tape, but I don't know if that fixed it or not. I've been getting some of the worst static i've ever heard. It could just be where I live though.
On a semi related note, I think my 108" whip was picking up a conversation about 8-9 miles away.
Here is a picture for reference with no tape on it.