Hi all,
Retrofitted a mulf2 high. Added 644 & 6FL to the VO then coded the MULF and M-ask2.

Bluetooth works great. I got the USB audio option on the aux menu.
Today I got a USB Hsd cable and generic USB port and connected it directly to the MULF to test it out. No power at the port, no. Communication. And the USB option remains greyed out on idrive.
Tyried using a USB 3.0 and USB 2.0 stick. No joy.

Any suggestions where my issue may be?

Thanks,
John

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