im glad someone started this... I know enough about car stereo installation to know that this means a bad ground somewhere. When installing aftermarket stuff in other cars and trucks this was one of the MOST annoying things ive encountered. Im not expert, but thats what i knew it was caused by..
AND YES. my RL does this. Frequently, if not always. Again only heard on talk and light music channels. I wasnt going to, but i probably will ask my dealership to look into this next oil change!
If anyone has info on this, or confirmed fixes, or anything please post. And if i learn anything, i will post my findings.