I would likely run a relay, but that is personal preference.
As far as the wiring, if you're not very fluent with basic electronics, I would strongly advise you to have someone help you with this one. A good start would be to get the approperiate wiring diagram - I recommend an OEM one from Helm Inc. The one I have for my '88 is very helpful.
You don't want to go in without a plan, often times a simple job can turn into a hack job.
1987 Ford Ranger Short Bed 5.0L/T-5 Project
1988 Ford Ranger Long Bed Parts Truck
1993 Ford Tempo 2.3L OHV HSC Auto - D/D Stock.
1999 Honda Accord VTEC Auto
2002 Dodge Caravan - 3.3L Auto
Last edited by Psychopete; 06-18-2009 at 02:24 PM.