Thank you for posting this! I got a KAE relay from BB as well and couldn't it to work until I stumbled across this post. I was a bit frustrated! I didn't bother BB about it, though. He's got enough on his plate as it is. I figured it was the loose nut behind the wheel (it usually is!).
Now that I've got it working properly I have been VERY happy with it. It works excellently. Don't know how I ever survived without it!