1&2. power support for AUX transfer cable
3&4. AUX transfer cable, connect to original AUX cable
5. USB cable
6. Connect to original Benz head unit
7.Connect to original Benz power cable
8. Connect to 3-pin socket under button panel
9. Brown color wire: Connect to aftermakret rear view camera trigger wire
10. Yellow AUX port: DVR Video In
11. Pink color wire: DVR ACC
12. Small speaker connector
14. Red wire: ACC In (Normally, you don’t need to connect it)
15. Power port: Connect to Android Screen
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