Bongo Fury

I have found a mystery switch glued on below the bonnet/filler release leavers. I am guessing it may be to switch off the glow plugs but when I try it the dash light still comes on for glow plugs. Any ideas?

If it is for the glow plugs (don't know why that would be though ) the dash lamp would still illuminate

Any pics?

No pics available but it is a RayPlug on/off switch with two white wires (one with a black stripe) that go back past the drivers seat. I have had a conversion so it may disable the rear fan unit. Will mail the conversion company. Thanks

I have a switch below the bonnet release on the shrowd under the steering column i found that if its switched on i have no head lights only dim side lights , switch it off and my lights are back to normal dont know what this is for really so have left it there
rob and karen