Bob,

Don't use the grounds.  Rather, run 12 ga. Wire back to the negative post on
the battery.

Karl WolzOn mine it's the 9004 plug. They sell them at FLAPS for about $4-5.
I keep 2
in the
parts box in the van. I seem to go through them about every year or 2. Even
have relays but the 80/100W bulbs must work over the grounds or something.
I replaced the grounds to be sure to minimize the resistance so the plugs
wouldn't have to absorb that, but it still happens periodically.

bob