I use an Expert Sleepers FH-2 to connect USB MIDI controllers to my rig. The DIN-MIDI I/O is on the back on pin headers. I could just make another 2HP TRS breakout but, that row is now FULL. Is there a connection to the MIDI port somewhere on the back of TBC2? Just unboxed it and had a little poke around with my meter but, didn’t find anything.