Marantz shows up as an Apple partner and it looks like the Marantz SR 5005 has a bluetooth accessory available that might allow streaming of audio much like Airplay. Maybe the 998 could include that kind of bluetooth device too.
_________________________
AvFan
Outlaw 976 | ATI 2005 | M&K 850s Left, Center & Right, Surround-55s, MX-70B Sub | Harmony 950 remote | Panamax 5100 | OPPO UDP-203 | LG OLED55B7