I have this weird problem with my tail lights. When I step on the brakes, only the right side brake light lights up. If I turn on the right turn signal, then the left brake light works. If I turn on the left turn signal, it works and the right brake light works. In other words, the right side seems to work normally and the left turn signal seems to work normally. Unless I have the right turn signal on, the left brake light won't work. I notice a wire from each side that seems to run into and then under the trunk. ARe these the ground wires for each side and could this be the problem? Anyone have any ideas? Thanks.