That's the problem. I can tap the brake, and it comes back, but then everything but the bass randomly cuts out again. All wiring to the amp seems secure, and in fact it played fine when I had the amp "out", but not when driving. Seems like a bad connection somewhere?
Help! LBBUZZ in Laguna Beach 2006 coupe

I have checked the amp, as much as you can just fiddling with the connection once it's tilted up from under the passenger footrest. Come on, soebody, where's the loose connection I need to fix??