Ric wrote:That's the sunlight sensor for the aircon.
OK then, I used to point the transmitter near the bottom of the windscreen around this point, 9/10 it would work if I was having a problem,
I had an 03 STi where alarm/central locking used to play up and I was told the receiver was down near the driver's side A pillar, this worked(on the STi) most of the time as well. Probably different system.
Should I ask what a sunlight sensor does? If it's for the climate control i don't think it works too well, mine always blew a gale on cool no matter what the temp setting indoor or out.