Thank You for the reply, I was thinking this was the solution however I like to double check before cutting into things...thanks again.

I just purchased a Pro Box for my Dynamis, it comes with an extension cable for an extra receiver(also included) which plugs in to the IR Extension on the base station. The problem is at the other end of the cable the plug will not fit the IR reciever due to a square tab on top of the plug on the end of the cable fouling the pin connection, ie both ends of the cable are the same.
The instructions say "Additional IR recievers can be connected to the IR extension module using the supplied cable"
Is there an adaptor piece that I don't have to allow the plug to fit properly?
I hope this makes sense, I just joined and this is my first post.