Sirius SUBX1 Universal Plug and Play Boombox bundled with a Sirius Starmate 4 (ST4) satellite radio receiver. Portable design with built-in dual speakers, top carry handle, AUX input, Power and Source buttons, and dock compatible with Sportster 3/4/5, Starmate 3/4/5, Stratus 3 and other “universal” Sirius receivers. Runs on AC adapter or 8 D batteries (batteries not included).

Condition: Pre-owned, sold for parts or not working. Does NOT include the power adapter and has not been tested. Cosmetic wear consistent with age — light scuffing on the silver trim, dust buildup inside the dock well, and minor marks on the speaker grilles. The ST4 receiver is physically complete with screen, buttons, and dock connector all present. No antenna, no remote, no power supply included. Buyer will need a compatible 12V Sirius boombox power adapter to test and use.

Great pickup for someone restoring a Sirius setup, pulling the ST4 for a car/home kit, or using for parts. Approximately 20” wide x 8” tall x 6” deep (estimated). Sold as-is, no returns.

Keywords: Sirius satellite radio, SUBX1, Starmate 4, ST4, boombox, plug and play, portable satellite radio, Sirius dock, parts or repair.