You selling some Xbox headphones?
So everything is CAN except the OBD port?
I've been researching this and the most I could find out was the OBD port was ISO 9141.
Do you know of somewhere that a CAN line is easily identifiable, to hook in to?
The ODBII port is also CAN mate and has CAN H and CAN L lines alongside the diagnosis lines. The protocol changes depending on age but most were KWP2000 iirc. This is why the non-CAN generic readers from Ebay no longer work as the CAN network links all the systems.
Glad you sorted it though and that it turned out to be something simple.
Mick