Hella BM 500s

[DanJetta]

Here's the pinout:

(From Top-Down)
1 - N/O contact
2 - N/O contact
3 - (+) backlight illum.
4 - (-) backlight illum.
5 - (+) ON indicator
6 - (-) ON indicator

The switch is momentary, so I used a DEI611T as the relay. Let me know if you need a schematic and pics.