inside the door
Not sure. I have a 1993 Chevy Silverado (K1500) ext cab 4x4, and I cannot find mine. Came across several different answers:
1. Factory relays above gas pedal - NO relays in my truck above gas pedal
2. Look inside drivers side dash speaker - nope, nothing inside
3. Look in dirver's door - no relays, just wiring
4. Some vehicles that old don't have relays - beginning to suspect
Been all up under driver's side dash and can't find it. Wish I could because trying to finish alarm/keyless/remote install. everything good but door locks. good luck.