This kit comes with one pre-wired receiver with a powerpack and two handy remotes . There is only one thing you need to do: connect the two wire to the drive unit as shown in the manual and plug the powerpack to a power point. The two new remotes will work straight.
Your existing remote will still work after installation of the receiver.
Extra remotes MK770 are avalable to purchase later or now, this kit can be stored up to 30 remotes.