I've just won this fella on eBay. I thought the Vectra B GSi smoked interior light looked better than the standard one, with it map/reading lights in all!
As far as I can tell the connections are as follows:
1 - 12v permanent live (Red)
2 - 12v or ground
8 - opposite to 2
9 - Multi-timer (Grey)
I suspect that 1 and 9 are configured as per the standard interior light as 12v permanent live (Red) and Multi-timer (Grey). However, I'm not sure whether the 12v (probably easiest to use the 12v permanent live on 1 for ease) for the two push button map/reading lights would go through the lamp first or switch first (I'm suspecting that 2 would be 12v since 1 is, so switch first).
Could anybody advise me?