Thought it was odd that they discontinued it. Early units were a tad problematic, they got more stable as time went on.
Mostly just used them as a native Crestron Airplay device. Our normal house audio spec is a CENTRAK with AM/FM/XM card(s) and a Audionet card and an NSP to mostly serve as an airplay device. We also will do a dedicated cable/sat box for music on client request. I hope the TRAK isn't next on the chopping block. XM via a non streaming source is almost always a winner for always accessible music with the fewest issues.
I am a trained professional..... Do not attempt this stunt at home.