back left brake light now working after a radio/speaker installation???

Question

ok so i was at best buy. I had a big audio job done... took out the factory radio (head unit) and trunk unit(amp) - bypassed the amp put in aftermarket radio and new speakers.

everything was tip top working great until i drive home and then i noticed that my back left brake doesnt work... the odd thing is when i actually BRAKE both brake lights light up bright like normal, but when the lights are simply only the right brake light is on.

My brake lights are I think two bulbs each, one for main part that you see from the rear, the other a smaller one on the side of the brake light.

The "side" part of the left brake light works normally, but the main part is not lit at all (however will light up bright when the brakes are pressed). I know this must be a wiring issue and they will have to fix it but anyone have an idea exactly what caused it?

car is a mercedes 350sdl 1991.

thanks)

in my question i meant "not working" not "now working" - thanks

Answer 1

yes take it back and they will fix it for you or at least should they should of gave u a pamphlet with there rules and if u bought a warranty then it will have it

Answer 2

I'd just call them, and ask them to check it out. It's possible that it's just a bulb, and that its failure was coincidental. If all your other parking lights work except that one, it's unlikely to be a fuse or a short. They may have dislodged the wire from the tail light while bypassing the amp.

Answer 3

Well your first problem was taking it to best buy. I have heard more horror stories about their installs than any one else! I would take it to the dealership, if they can prove that the install caused this problem, have the dealership fix the car and send the bill to best buy with a really nasty letter!