Delphi SA10227 Home Kit For the SKYFi3® plug-and-play XM radio

Amazon sells the Altec Lansing XM3120 for 16.95.
This unit works with skyfi3 (use the included Roady XT adapter).
Apparently, the volume adjustment knob on the XM3120 will NOT work with the SKYFi3. To adjust volume, use the volume controls on the side of the SKYFi3, or the SKYFi3's remote control.

New comment: I just received the Altec Lansing unit, and its volume knob WORKS. To change the volume you can use this knob, or the skifi3 remote control (or the radio volume).

The Roady XT home kit ($15) may also work with Skyfi3 radios; I am not going to order this kit because I like the Altec Lansing unit much better than any home kit.

The Home Kit is great for how affordable it is. The downsides for me were that neither the earphone or antenna cords are long enough. It's not dissapointing but a little inconvenient because you can't move around very much. You need to connect your radio to an external stereo or home entertainment system and listen to it that way if you want to lay on your bed, sofa, floor, pace around etc. The remote control is great.