I have climate control on my gal. Any ideas? dual climate or just single? i think this plug is for the dual climate systems, it's for a control flap of sorts in the heater unit Think it is the dual... I have two temp/fan adjustments, front and rear. NikpV- where did you get those pictures? do you have roof vents for the rear cabin? if not you only have front cc and the connector in question is not used, it looks like the pictures are from the TIS or the VW equivelent ? No roofvents.... so the rear adjustment is just for normal heating then?