Need help with possible Yamaha disklavier U1 purchase and iphone connect?

[phdezra1]

Hi all. After some more searching, I found a late 1990s Yamaha Disklavier that uses floppies. It is in a U1 body (acoustic) and in mint condition with hammer in like new. Plays medium (not too mellow, not too bright). I would *like* to be able to connect my iPhone (or iPad) to the disklaiver system and call up hundreeds of pieces and play pieces that way, instead of manually inserting floppies. Any idea if this is possible with the older style disklaciver -- would I need to upgrade a compnent?? Or is it as simple as connecting an IN wire? (Sounds naive, but humor me.) Anyone?