[TenTec] Question about FSK with Orion II

[CaseKE@aol.com]

I would like to use the Auxiliary I/O plug and cable sent with the Orion II 
without modification if possible.  The I/O socket is 8-pin and the plug is 
5-pin.  Pin 5 of the socket is a "no connection (NC)," but pin 5 of the plug 
does 
have a wire connected to it (Red).   FSK is available on pin 7 of the socket, 
but there is no pin 7 of the plug (does this strike anybody else as strange?). 
 Can I simply put a jumper from pin 5 of the socket to pin 7 of the socket 
(or alternatively rewire pin 7 to pin 5) so I have FSK on pin 5 of the supplied 
plug and cable?

Thanks,  Ken K5KC