said by mackey:That's the *SAME* keypad I'm having right now (by looking at the 6160 picture at least).. Woot!!!
Yup, it's listed in that install manual posted earlier: 6160 . Also comes in a "voice" version which sounds like it speaks to you (6160V) and a wireless version (6160RF). Google shows them starting at $87 and ebay has a few for $76 buy-now plus several auctions in the $25 range.