Garage Door Opener Control Module -J530-, Connector Views

Courtesy of AUDI

T4U (A)	Designation
1
2	LIN-Bus, from B549 LIN-Bus Connection 2 (in main wiring harness)
3	Terminal 31, to 685 Ground Connection 1 (on right front long member)
4	Terminal 30, from Fuse Carrier 1ST1 in Fuse Panel C SC