The Integra TUN-3.7 tuner accepts the cards from the card-based receiver line (DTR-10.5, TX-NR1000 and RDC-7.1).
The C-HDXM card has been discontinued (all gone)...that has AM/FM/HD/RDS/XM capability.
In August, the new C-HDSAT card ships. That features AM/FM/HD/RDS/XM/Sirius. The tuner is designed for custom installation, as are all Integra products.
It has an aluminum front panel, infra-red remote, 3 IR code sets for multiple tuners, bi-directional RS-232 port, 12V trigger I/O and is rack-mountable. 40 tuner presets, auto scan, direct tuning...