I'm pretty sure this has been done before...
Anyways, I've had one ticket for music. The cop had to be having a bad day because at the time when I got the ticket, all I was running was a set of Alpine 6x9 Type Rs in the rear deck and a set of Type S 4x6 in the doors all on my MRP-F450 and a 9855. The volume wasn't turned up past 18. He was just being a d-bag. $125 for that offense. Supposedly it goes up each time. I'm way more careful now. The only thing that sucks about my 800PRS is that there's no pause button or mute button on the face. I got pretty good at muting it quickly with the attenuator on the 9855.