I have a rare under-dash unit mad by BEHR for Porsche, This was the only Vendor Porsche commissioned to make A/C Venting Components. all others out there are aftermarket. This unit has a beat-up housing with patches everywhere, but the vents themselves are in great shape as are the switches, this is still a usable unit as it is or use it to restore a unit with a perfect housing. These vents are impossible to find in working order and if you do find them, they cost nearly $!00 each.