Oddly Dojj,

I have got only 2 wires to play with and at the moment they are both connected on the same terminal.

One is the big battery wire and the other is the battery light....oddly, at the moment I have one side of battery light connected to IGN+ and the other goes to the alternator, with the battery connected the light goes on (no key in ignition) so I cannot fathom where the light is getting its earth from? Then I turn on the ign and the light goes out.