ASA5505 with site-to-site dynamic-static

Hey atm we are running 2 ASA5505 with a site-to-site and one of them acting like a master because all our VPN-clients connecting into that. But now we are going to setup one more site-to-site to the same master ASA. But now I just gotten the information that where the new ASA is gonna be its dynamic IP so my question to you out there is it possible to have a site-to-site with dynamic IP and second how do I set it up. Do I use the dynamic-map on the master ASA and just use static on the new one?

If you for some reason wants to see my cfgs I will post them but I dont see the point for that atm