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Ships within 48 hours · Estimated delivery Jun 15 - Jun 20
For Your Every Summer RSVP, with Code: SUMMER15
Description
Boss Audio MGR450B Marine Stereo w/AM/FM/BT [MGR450B]MGR450B Marine Stereo w AM FM BT The Boss MGR450B stereo packs a lot of features into a compact design that fits into a standard gauge opening. Crank up some AM FM radio, or plug a compatible device into the rear USB or AUX inputs. The pre set EQ lets you optimize the sound for your favorite tunes, and the full set of preamp outputs will come in handy if you want to expand your system with marine amps and subs. The backlit LED display lets you see
![Boss Audio MGR450B Marine Stereo w/AM/FM/BT [MGR450B] Boss Audio MGR450B Marine Stereo w/AM/FM/BT [MGR450B]](https://cdn.shopify.com/s/files/1/0611/7297/3739/products/66030XL.jpg?v=1643795757)
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
4.4 ★★★★★
Based on 2253 reviews
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Product Reviews
★★★★★ 5
They Fixed My Boat
Size: PP67-712 V1
My boat wouldn’t start, and the outdrive wouldn’t go up or down. So I bought three of these solenoids and replaced the starter and both trim motor solenoids/relays. Now it starts right up with no problems and the trim motor is working again also. I have a 2006 Stingray boat.
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Reviewed in the United States on May 7, 2022
★★★★★ 1
Poor quality
Size: PP67-712 V1
Poor quality. Replaced a starter solenoid on a mercruser 4.3. Right off install it would click but not make a connection to start motor. Confirmed this was the culprit by jumping the terminals. After testing multiple times found it worked a little less than half the time.
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Reviewed in the United States on May 29, 2026
★★★★★ 5
Thick wires
Size: 4/0AWG, Color: 10ft Black + 10ft Red
Heavy duty for my solar set up. These wires are thick. I've never used such thick wires for anything. Now I know why they're so expensive. There was some weight to these wire too. The diameter is larger than a dime. These are some serious wire.
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Reviewed in the United States on December 25, 2025
★★★★★ 5
Monster cable
Size: 4/0AWG, Color: 3ft Black + 3ft Red
Well I now know what 4/0 or 0000 cable is. Huge but very easy to handle or bend to shape.
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Reviewed in the United States on January 13, 2026
★★★★★ 5
Used for my rv battery bank
Size: 4/0AWG, Color: 3ft Black + 3ft Red
Good quality used these for my battery bank on my rv solar setup.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 1, 2025
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