I have an '88 Sentra 2 dr with no tail lights. Brake lights and signals work. There is a brown 8-pin relay connected to the harness on the left side in the trunk that has parts rattling around inside. What is it called, and where can I get one? ( I know I can probably find one in a junkyard, but mine is 20 years old, and so is anything I would find in a yard. I'm not above searching through a junk yard, but new would be better.) Any sources for this part?