Brake light problem on '95

I have a 95 GA, about 110,000 miles.

The right brake light doesnt work when the brake is pressed. This light, however, illuminates when the headlights are on, and also when the turn signal is turned on... just not when the brake is pressed.

I have checked all the wires coming into the trunk, and have also connected the wire harness from the left side, to the right to see if the entire light plate was the issue, but no... the brake light works with the left hand-side wires.

I am not sure where to go from here, other than spending too much for a shop to spend hours doing what i have already done.

Thanks

It sounds like your turn signal switch is going bad.