[davidimurray]

In between chopping up material for suspension bushes I braved to dig the sierra fuse box out of my big bag of wires. Had a look but couldn't fina a big black relay. My Sierra was an 87 GL - anyone know if they had them - will check the haynes diagram this evening.

Davedew - that is one option. My only reluctance is that when the car is parked up - any passer-by could switch the lights on.

Enoch - assuming all the side lights added up to 6 amps, that leaves 36amps to take through the switch gear.

One thing I have yet to check is the size of the wire going to the switch as I'm guessing this would be a good indicator of capacity. I'm currently leaning towards fitting the relay as it then keeps all the high current carrying wires out of the cockpit.