Does anybody know of a double gang weatherproof enclosure that you can install a Russound CAV Unos2 keypad.
You may also want to consider using a slave A-bus keypad off the same zone. I have just such a setup. I've got the same zone covering a sun room and an adjacent deck. The deck is setup as a slave through an A-bus keypad. This lets it control it's own volume level. It does mean both the deck and the sun room will always have the same source, but they can have different volume levels (or be off). It's worked reasonably well for 2 years now.