We just purchased a 66 Beetle that I believe has been converted from a 6 volt system to a 12 volt (everything is currently 12 volt). Under the hood was a wiring nightmare, most of the fuse block was unhooked and the wire ends were just taped together. After replacing the fuse block and fixing the wire issues I only had high beam headlights. After checking the wiring diagram it appears that I am missing a head light relay. Will the 6 volt relay work? Is there a relay for the 12 volt conversion? Thanks for the help.