DX7s with Satellite

Howdy,

I got the DX7s with the Receiver/Satellite combo. I'm currently only using the satellite with a 3GX system and want to buy another satellite because the 3GX supports two satellites. Is it just a matter of buy the extra satellite and plugging it in? Do I need to do anything more?

Or do I need to do a re-bind after I plug the second satellite in?

Thanks!