Kam plus to TM-G707A
 

This should be simple. Using Kenwood's data cable, wire 1, brown, should
go to pin 1, wire 2, red, should go to pin 6, wire 3, orange, should go
to pin 3, and wires 4 and 5 both go to pin 5. TNC will not key radio.
What did I do wrong, or do I have the wrong pinout??