i have the same problem...happened 1 hour before my birthday....this is killing me.....the legends not the same with the bose stereo....i need my music people.....please help!!!!!!!!!!!!!!!!
Couple of potential free solutions.
#1) (I think this was Qboro's solution) pop the bass and treble knobs out and lift up on them with your finger tips. not to the point of bending them, but crank on them till your finger tips hurt. Sometimes it makes it go away.
#2) (my solution, 100% success rate in my car) with the treble knob pushed into the "in" position, push it in with the edge of your finger, and roll your finger out of the way so that the knob goes from extreme "in" to full "out" with a snap ( be prepared to catch the plastic part of the knob, mine has shot off into the back seat a couple times). For whatever reason, it makes the static stop :headscrat
If it doesn't work, hey, it didn't cost anything to try it.