Can't tell you much about the connector or cord, but the setup is simple. Start the plane (or whatever you are going to be using with the buddy box setup), then set all on the buddy box to neutral except throttle. Set that at min. Operate the buddy box switch on the master and see if anything changes on the plane. If elevator moves, for instance, switch back and forth from the master to the buddy box while adjusting the trim on the buddy box until the elevator does not twitch or move when switching back and forth. Do this for all control surfaces and the throttle. Once all are set so that the control surfaces do not change during switching back and forth, you are all set to use it, they will both be the same.

Hope that helps.

DS.