Hi Alan,
I too am looking for advice on wiring up a heated screen (for a 300Tdi Discovery). My screen has two connectors, one at each end. Auto-Sparks of Nottingham were really helpful in providing the correct connectors, Dash board Switch and Timer relay but I can't find any information on how to wire up the switch. There are five connectors, numbered 1 - 5.
If you find any information out could you please pass it on?
There seems to be quite a lot of dicussion on various forums regarding Heated Screens but no information.
If I find out anything I'll pass it on.
Good hunting!
Mike.