[Nine8Six]

I will let you know, for sure. The more we are the better!

Sure you'll find a way to comm with the obd with your device(s). Never seen the unit layout or schematic but I'm sure they left you a uart interface somewhere in there for you to hack. If you go that diy route then also look up for the NXP's TJA1055 for the transceiver (low speed). Doesn't need much; 3.3-5V decoupling, CAN-H/L input and RX/TX output over that MCP2515 and that's pretty much it. Example libs and clock cpp are literally everywhere (ps. DTCs are roughly same as VW and Audi). GL!

Let me know if you are stuck (I doubt!) and I'll do my best to help out if needed.

edit: if no uart avail then just use a BT module. That (should) set-up a new com port in your unit, then just write your stuff to port over that. Easier that way maybe (less wiring lol)