SKU: 6376453590

Boss Audio MGR300B Marine Stereo w/AM/FM/BT/USB [MGR300B]

$152.99 $169.99
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USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 13 - Jul 18

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Description

Boss Audio MGR300B Marine Stereo w/AM/FM/BT/USB [MGR300B]MGR300B Marine Stereo with AM FM BT USB The MGR300B stereo packs a lot of features into a compact round, gauge style design that fits into a standard gauge opening. Crank up some AM FM radio, or plug a compatible device into the rear USB Aux input. The large backlit LED display lets you see what you're hearing with just a glance, while the IPX6 rated water resistant face panel and big, easy to use controls are made to resist sun, salt, and moisture.

Boss Audio MGR300B Marine Stereo w/AM/FM/BT/USB [MGR300B]
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 6376453590

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4.5 ★★★★★
Based on 909 reviews
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Product Reviews
D
Verified Purchase
Dan from Georgia
Dallas, US
★★★★★ 4
Wire length between the two connectors is short for a full-size pickup
Size: 16AWG Wiring Harness-2 Leads
I used the harness to wire ditch lights on opposite sides of a full-size pickup (F150). The wire between the 2 2-pin connectors was about 18 inches too short. Fortunately, splicing the wires from the (Nilight) ditch lights and the included pigtails gave barely enough length to reach the connectors. The connectors are buried inside the trim channel for the cowl; I'd have preferred they were exposed on each side to allow for easy swapping of the lights, but I can live with it. There is more than enough wire from the first connector to the relay for my all-under-hood installation, but I didn't think to measure if it would reach into the truck bed. The harness is of good quality and is a very good value. It would be a 5-star if it weren't for that little length issue.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 1, 2025
N
Verified Purchase
Nate Higgers
Natrona Heights, US
★★★★★ 5
great value
Size: 16AWG Wiring Harness-2 Leads
very affordable light install kit. worth the price just in the wiring connectors. I used this with my Nilight front bumper kit. i bypassed the button and wired high beam (+) to the yellow small wire. I did this so when the highbeams come on the light bar comes on. because with the stock arragement of this harness, the button continously draws power for the indicator LED
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 30, 2026
L
Verified Purchase
Lee Mintz
Draper, US
★★★★★ 5
The Easiest!
Size: 16AWG Wiring Harness-2 Leads
This is one of the best and easiest wiring system to install that I have every used. And the price is great!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 11, 2025
A
Verified Purchase
Anna Pozzi
New York, US
★★★★★ 5
Well done. Useful.
Size: 16AWG Wiring Harness-2 Leads
Always well done.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 24, 2025
C
Verified Purchase
Christopher rivera
Bozeman, US
★★★★★ 5
Muy bueno gracias
Size: 16AWG Wiring Harness-2 Leads
Excelente
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 27, 2026

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