Steve, My K2 manual rev F, January 29, 2004 is very specific. To quote: "Install the 10 pin, dual row connector, P4 (to the left of P5). The short ends of the 10 pins are inserted into the board" There is a misprint following which refers to P5 when believe it should be P4. Regards, Bob, G3VVT K2 #4168