Does anyone know where I can get the 3 wire harness that goes between the headlight switch and main harness on a 1977 MGB? It is about 12" long and has a blue, red, and brown wire in it with a quick-connect on one end and 3 "bullet" type connectors on the other. If I can't find one, are there connectors out there that will fit the posts on the headlight switch? As always, thanks for all your help!