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Ships within 48 hours · Estimated delivery Jun 16 - Jun 21
For Your Every Summer RSVP, with Code: SUMMER15
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] Boss Audio MGR300B Marine Stereo w/AM/FM/BT/USB [MGR300B]](https://cdn.shopify.com/s/files/1/0611/7297/3739/products/94388XL.jpg?v=1652260266)
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.5 ★★★★★
Based on 2389 reviews
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Product Reviews
★★★★★ 5
Awesome!!
Had a check engine light come on for cam shaft position. Did some research online about the specific code and found that I could be due to sludge in the engine. Added this and ran for about 30 minutes and then had the oil changed.
The light never came back on and the engine is running smooth and quiet.
Will definitely use again.
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Reviewed in the United States on April 5, 2026
★★★★★ 5
Great product
This brand is great. The car is running great
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Reviewed in the United States on March 4, 2026
★★★★★ 5
Great Product
Just as described and prompt shipping
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Reviewed in the United States on January 18, 2026
★★★★★ 5
They are great
Work as they should.
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Reviewed in the United States on January 7, 2026
★★★★★ 5
Good price!
These are your basic filters for jeep or Chrysler vehicles with the regular oil change interval mileage. Cheaper than Autozone for the price.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 17, 2025
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