Lenny, is yours a 3-wire wiper switch? (What year?) And what wires did you have to connect?

Cheers.

Yes, mine had three wires on the switch. I think I disconnected them all and put two of them back on with wires from the module piggy backed onto them. The third wire was connected straight to another wire from the module rather than being put back to the switch.
I can't say I was really taking much notice of what went where to be honest. The instructions were a piece of cake to follow. Took about half an hour to fit.

Thanks for that. Where does the control go, and do you have to switch the main wiper switch on first, or what?!

There's a black box that screws in place using the screw that holds the flasher unit under the dash. From that there's two sets of wires. One set goes up towards the wiper switch and connect up there, the other set goes to a rotary control that I put through a spare warning light hole.
The standard wiper switch works as normal. If you want intermittent then you turn the rotary control to where you want it. The time between sweeps can be varied with this control.

Sounds good, Lenny. Thanks for the info.