Thanks a lot. I think I found this seller through his website, but it's great that he has an e-bay account too. Now...
The problem is that he claims that the switch is the 6552QT but it still has 7 large pins. The one that used to work on my car only has 4!!! So, either that is not a 6552QT part number switch (on the eBay page), or there has been some monkey business on my car by a previous owner.
Does anybody know if there is a 17+4pin mirror switch instead of a 17+7pin like the one in the eBay ad?
It's become a complete drama tracking down a switch like mine and I'm even starting to believe that it doesn't even exist and a previous owner mangled the cabin electrics...
Peugeot 306 GTI-6 '98