Here's my problem. I found some tail lights housing and sockets I want to use on my 32. They are old 6 volt style. I am keeping the the sockets but I switched out from a single contact to a dual contact pigtail. I am getting juice to the pigtail but when I turn on the head lights the tail lights won't go on. Even if I touch one of the contact on the pigtail with the prob tester I get juice.