2007 Audi A4 INSTRUMENT CLUSTER WIRING DIAGRAM

BOSCH RB8 

8E0920 951G

I found the answer by myself...... Here is what it's work for me.

GREEN CONNECTOR

PIN # 1 2 3 POSITIVE (+)

PIN # 18 19 NEGATIVE (-)

Mileage reading will show up for just 2 seconds and then SAFE is displayed.