BOSS Audio MGV550B

Last updated: November 7, 2026

BOSS Audio MGV550B
3.1/5#1 of 10 in gauge-hole marine stereos
3.1

A gauge-mount stereo with a big touchscreen and camera input, for a center console or UTV where you want to see a backup camera. The amplifier rating is not published.

  • 1Zones
  • IPX6Water rating
  • 5 in color touchDisplay
Check price at Amazon$245

Price checked November 7, 2026. As an Amazon Associate we earn from qualifying purchases.

Pros
  • 5 in color touchscreen, the largest screen here
  • Two video inputs including a rear camera, for docking
  • Accessory button switches light bars or other gear through a relay
  • Three-year warranty
Cons
  • No RMS power rating published
  • Needs a 3.55 in hole, larger than a standard 3 in gauge

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 numberMGV550B
Audio
Zones1
RCA output sets3
Sources and control
BluetoothYes
USB playbackYes
Phone appNo
SiriusXM-readyNo
NMEA 2000No
Wi-Fi or AirPlay 2No
Weather bandNo
DAB+No
CD playerNo
Camera inputYes
Build
MountGauge hole
Front water ratingIPX6
Display5 in color touch
Warranty3 years

Alternatives in this mount

Kenwood eXcelon KMR-XM500

The step-up version of Kenwood’s gauge-hole stereo, for a system that will run external amplifiers. If the stereo will power the speakers directly, the KMR-M300BT does the same job for less.

Amazon $349
$349
19 W x 4 RMS1Gauge hole

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