3 grounds and 2 power then CAN lines so it should pinout (1-ground,2-power, 3-not used, 4 CAN L, 5-ground, 6-power, 7-ground, 8-CAN H) this is for the 8 pin connector on the W204 facelift screen.
Is the Bluetooth built into the facelift/NTG 4.5 HU or is there a separate module?
Swapped to facelift dash board! Car had command NTG 4.0 originally so I just swapped the CAN L/H on the 12pin connector and some microphone inputs to mirror the NTG 4.5 pin out. The screen did power up for a brief second but will not anymore. I’m out in the USA. Thanks for your help!