hey guys, i'm new to the site...but i def like what i have read so far.

the problem is with the speaker in the driver side door. it seems to me like there is a bad connection somewhere, because every now and then the speaker will make a buzzing noise and sound like crap. the speaker can't be blown because it doesn't always make the sound. and something weird that i noticed the other day, when i push the brake pedal down, the buzzing in the speaker gets louder. anyway, my question is...does it seem like just a bad connection to the speaker from the head unit (or the other way around) or do i need to run a new speaker wire completely? i'd appreciate the help before i do any work that doesn't need to be done