Had a stereo installed last week by a friend, however now Ive noticed my reverse lights are not working....(AE101 GTZ)
Im not sure if its related to the stereo install or not, since I was there, and the wires appeared to be all the right ones.
It seems kinda weird that BOTH reverse lights arent working at the same time.
Ive pulled the lights off and checked the bulbs which appear to be fine.
Ive checked the fuses both inside the footwell AND in the engine bay.
What should I do now?

