diagram help

You can use that one, or one from AutoZone or continue to use your current one. Just hook it up to the wires that are running to your current voltage regulator. There should be a wire running from the ballast resistor to it, it looks different then the newer ones.

AutoZone sells a solid state one that works with our older cars, and it hooks up the same way. Mopar Action had an article on it in the current issue, I picked one up and it seems to work better then the MP one I had.