i hope im in the right spot. removed my stock tail light and wanted to put one over my side mount tag. bought a cheap trailer light and it wouldent work. when i hooked up two of the three wires it came on but when i applied the brakes nothing happend. what im gettin at is how do i make it work with just two wires. i have searched ebay and 99% of the custom tail lights they sell only have two wires. do i need to do something to the harness or the light itself? any help at all would be great. thanks.