I just received a reply from Juan at Aditech. Super helpful. So it seems that Aquatech uses a special ordered bulkhead that has an S6 bulkhead with a Male Mini connector. Normal S6 bulkheads offered by 10Bar uses a Female Micro connector to connect to the hotshoe plug. I'll attach the email below but what I have is basically different in size and orientation from a normal 10Bar bulkhead. I am going to first try to make a short connection between the hotshoe cable and the bulkhead cable that has female mini connections on either end. If that doesn't work I am going to solder the connections.
Hopefully this proves helpful for someone down the road.
Take a look at the attached picture, the right Male Mini connector comes with the hotshoe plug that fits the Female Mini connector of the Canon 6pin bulkhead (not the one you have) and the left Male Micro connector on the picture fits in the Female Micro connector of the S6 bulkheadhttp://www.aditech-u...pa-bh-scm6.html and according to your pictures, you have a S6 bulkhead with a Male Mini (not a Micro¡) connector, it´s clear that you cannot plug your Male Mini connector with any of these, in order to be compatible you should have a Female Mini or Micro type connector.
You will have to cut the connectors and solder each individual wires, or if you can wait, we can order to 10Bar one hotshoe Canon plug with a Female mini connector