For those planning higher wattage headlights, do consider that the contacts
on the 9004 bulb harness are not really sufficient for 80/100W bulbs.  If
you relay the system as Jeff suggests and thereby provide more current to
the bulbs, the possibility of melting the connector or the bulb housing can
short circuit your efforts, so to speak.  As with many modifications,
including SVX transplants, getting rid of only the weakest link soon reveals
the next weakest link and so on.

Beware the holiday goose!

pensioner