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®

Fusion

 MS-UD/AV650/750 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.

What's In the Box

• Two Mounting plates
• Mounting hardware

◦ Four 8-gauge, self-tapping screws
◦ Four M4 machine screws

• Power and speaker wiring harnesses
• RCA splitter
• Micro-USB to USB cable (UD models only)
• Lightning

 connector to USB cable (UD models only)

• Apple

®

 30-pin to USB cable (UD models only)

• Remote control (AV models only)
• Two AAA batteries (AV models only)

Tools Needed

• Phillips screwdriver
• Electric drill
• Drill bit (size varies based on surface material and screws 

used)

• Rotary cutting tool or jigsaw
• Marine sealant (optional)

Mounting Considerations

• The stereo must be mounted in a location where there is 

enough clearance for the open door of the stereo as 

indicated on the template.

• The stereo must be mounted in a location that allows open 

airflow around the rear of the stereo for heat ventilation.

• The stereo must be mounted within 45° of the horizontal 

plane.

• The cable should have a drip loop to allow water to drip down 

off the cable and avoid damaging the stereo.

• If you want to mount the stereo outside the boat, it must be 

mounted in a location well above the waterline, where it is not 

submerged.

• If you want to mount the stereo outside the boat, it should be 

mounted in a location where it will not be damaged by a 

docks, pilings, or other pieces of equipment.

• To avoid interference with a magnetic compass, the stereo 

should be installed at least 15 cm (5.9 in.) away from a 

compass.

Mounting the Stereo

NOTICE

Be careful when cutting the hole to flush mount stereo. There is 

only a small amount of clearance between the case and the 

mounting holes, and cutting the hole too large could 

compromise the stability of the stereo after it is mounted.

Before mounting the stereo, you must choose a location 

following the guidelines above.

1

Trim the template and make sure it fits in the selected 

location.

2

Secure the template to the selected location.

3

Using a drill bit appropriate for the mounting surface, drill the 

hole inside the corner of the dashed line on the template to 

prepare the mounting surface for cutting.

4

Using a jigsaw or rotary tool, cut the mounting surface along 

the inside of the dashed line indicated on the template.

5

If necessary, remove the sun cover from the stereo.

6

Place the stereo in the cutout to test the fit.

7

If necessary, use a file and sandpaper to refine the size of 

the cutout.

8

After the stereo fits correctly in the cutout, ensure the 

mounting holes on the stereo line up with the pilot holes on 

the template.

9

If the mounting holes on the stereo do not line up, mark the 

new pilot-hole locations.

10

Using an appropriately sized drill bit for the mounting surface 

and screw type, drill the pilot holes.

11

Remove the template from the mounting surface.

12

Connect the wiring harnesses and wires, while observing 

polarity.

13

Place the mounting gasket on the back of the stereo 

À

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December 2014

Printed in Taiwan

190-01759-02_0A

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