2002 sirion mirror switch - which is the hot wire ?

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Hi people.

Could a kind soul please tell me which colour wire in the Sirion (2002) mirror switch is the 12 volt feed
(ie. the supply into the switch) Unknw

My switch has no power into it. The fuses are all good but the CD player has been chopped out which I suspect has something to do with the lack of supply to the switch.

thank you
Smile

edit - checked out another vehicle - it's the blue wire on the side.