The cheapest way to put Bluetooth on a small boat with a single-DIN hole. The listing leaves out most of the numbers that matter.
Amazon $59.99
An inexpensive single-DIN marine receiver with Bluetooth, USB and SiriusXM. Sony publishes too little about its amplifier and water rating to rank it higher.
- 1Zones
Price checked November 9, 2026. As an Amazon Associate we earn from qualifying purchases.
- Fits a standard single-DIN opening
- SiriusXM-ready, with a wireless remote in the box
- NFC tap-to-pair for Bluetooth
- No published RMS power or IP rating
- No app control
How it scores
The rating comes from 7 measured or published factors, each scored 0-100 against fixed reference points for its mount. How we rank explains each one.
Specifications
| Model number | DSX-M55BT |
|---|---|
| Audio | |
| Zones | 1 |
| RCA output sets | 2 at 2 V |
| Sources and control | |
| Bluetooth | Yes |
| USB playback | Yes |
| Phone app | No |
| SiriusXM-ready | Yes |
| NMEA 2000 | No |
| Wi-Fi or AirPlay 2 | No |
| Weather band | No |
| DAB+ | No |
| CD player | No |
| Camera input | No |
| Build | |
| Mount | Single DIN |
| Warranty | 1 year |
Alternatives in this mount
A solid two-zone stereo around $200 for a boat that powers its speakers from the head unit. Step up to the CMM-30 for color, SiriusXM and NMEA 2000.
Amazon $206.77A low-cost Fusion head unit for a small boat that streams from a phone. Pick the RA210 instead if you want USB, SiriusXM or chartplotter control.
Amazon $249.99Compare
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