Ihave an E-Sky Et transmitter and am trying to connect to another E-sky transmiter(0404D) with an E-sky buddy cable.

What is the procedure to get this to work?

Ihave tried using the Et without a crystal, with a crystal and even without power, but cannot get any reaction from the plane. As soon as Iplug in teh cable all the servos start twitching etc.

What am I doing wrong? My buddy is so tired of crashjiong his plane!

Help!