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®

FUSION

®

 MS-BB300 Installation 

Instructions

Important Safety Information

 WARNING

Failure to follow these warnings and cautions could result in 

personal injury, damage to the vessel, or poor product 

performance.
See the 

Important Safety and Product Information

 guide in the 

product box for product warnings and other important 

information.
This device must be installed according to these instructions.
Disconnect the vessel's power supply before beginning to install 

this product.
Before applying power to this product, make sure it has been 

correctly grounded, following the instructions in the guide.

 CAUTION

Always wear safety goggles, ear protection, and a dust mask 

when drilling, cutting, or sanding.

NOTICE

When drilling or cutting, always check what is on the opposite 

side of the surface.
You must read all installation instructions before beginning the 

installation. If you experience difficulty during the installation, 

contact FUSION Product Support.

Software Updates

For best results, you should update the software in all FUSION 

devices at the time of installation to ensure compatibility.
Go to 

www.fusionentertainment.com/marine

 to download the 

latest software. Software updates and instructions are available 

on your device product page.

Mounting Considerations

 CAUTION

In high ambient temperatures and after extended use, the 

device enclosure may reach temperatures deemed dangerous 

to touch. Therefore the unit must be installed in a location where 

it will not be touched during operation.

NOTICE

This device should be mounted in a location that is not exposed 

to extreme temperatures or conditions. The temperature range 

for this device is listed in the product specifications. Extended 

exposure to temperatures exceeding the specified temperature 

range, in storage or operating conditions, may cause device 

failure. Extreme-temperature-induced damage and related 

consequences are not covered by the warranty.
• The device must be mounted in a location where it is not 

submerged.

• The device must be mounted in a location with adequate 

ventilation where it is not exposed to extreme temperatures.

• The device should be mounted so that the cables can be 

connected easily.

• To achieve IPX3 water ingress protection and optimal heat 

sink cooling, the device must be mounted on a vertical 

surface with the connectors pointing downward.

• The device can be mounted on a horizontal surface, but such 

positioning might not achieve IPX3 water ingress protection.

• To avoid interference with a magnetic compass, the device 

should be installed at least 203 mm (8 in.) away from a 

compass.

Mounting the FUSION BB300 Device

NOTICE

If you are mounting the device in fiberglass, when drilling the 

pilot holes, it is recommended to use a countersink bit to drill a 

clearance counterbore through only the top gel-coat layer. This 

will help to avoid cracking in the gel-coat layer when the screws 

are tightened.

NOTE: 

Stainless-steel screws may bind when screwed into 

fiberglass and overtightened. It is recommended to apply an 

anti-seize lubricant to the screws before installing them.

NOTE: 

Screws are included with the device, but they may not 

be suitable for the mounting surface.
Before you mount the device, you must select a mounting 

location and determine what screws and other mounting 

hardware are needed for the surface.

1

Place the device in the mounting location and mark the 

location of the pilot holes.

2

Drill a pilot hole for one corner of the device.

3

Loosely fasten the device to the mounting surface with one 

corner and examine the other three pilot-hole marks.

4

Mark new pilot-hole locations if necessary, and remove the 

device from the mounting surface.

5

Drill the remaining pilot holes.

6

Secure the device to the mounting location.

Connection Considerations

The device must be connected to power, either the boat ignition 

or an external switch, a NMEA 2000

®

 network, speakers, and 

media input sources to function correctly. You should carefully 

plan the layout of the device, the NMEA 2000 network, the 

speakers, and your input sources before making any 

connections.

Connector Identification

Connector

Connects to

ANT

External AM/FM antenna

AUX IN 1

Stereo line-level RCA auxiliary source

AUX IN 2

Stereo line-level RCA auxiliary source

ZONE 3

Separate amplifier and speakers

SUB OUT 

Mono line-level subwoofer (tied to ZONE 3) 
for amplifier

WIRED REMOTE NMEA 
2000

FUSION NRX or NMEA 2000 network

SXM TUNER

SiriusXM

®

 tuner

USB

USB-compatible media device

À

Power and speakers

Á

Reserved for future use

Wire Identification

Wire Function

Wire Color Notes

Power (+)

Yellow

This should be connected to a 
constant 12 Vdc source capable of 
supplying 15 A.

Ground (-)

Black

February 2017

Printed in Thailand

190-01914-02_0B

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