CB Radio Interference

[Storm Chaser]

I was wondering if anyone has encountered this slight problem with a CB. Every time I apply the brakes, a second later there is a few seconds of static that comes through the radio after I disengage. It happens on all channels. I ran the coax and power cord under the front of the dash and is rather close to the dianostic port. I have no symptoms when I transmit. This seems to be the only thing affected. Any ideas?