my horn has stopped working, i have no idea why. upon close inspection, ive noticed this: where the wire is broken, that wire is connected to the hose like thing just above it. and my brakes. my rear brake has been making a grinding noise for a few weeks now, and ive been ignoring it. looking at my brake disc today, its being 'scratched'...brake pads were worn down to the screw i presume? i feel like an idiot for ignoring the problem, but when you have no money to take it to a mechanic....so im just wondering, how much for brake pads on the rear and a new disc?