Diamond Audio Stage 2 + MSHDHU14 Installation Guide | 2014+ Street Glide

Installation Video

MSHDHU14+ Installation Video

Tools needed:

• Fender cover
• T20 torx bit
• T27 torx bit
• T40 torx bit
• 5/32 hex bit
• 2mm allen wrench
• Panel removal tool

Step 1

Remove the outer fairing:

• Place a fender cover over the front fender to protect the painted surface.
• Remove the four T27 torx bolts.
• There are two located on each side of the fairing.
• The shorter bolt is lower and long bolt is towards the top of the fairing.
• Remove the three T27 torx bolts from the top of the fairing.
• Leave the longer bolt in the middle attached slightly to support the fairing.
• Remove the windshield.
• Remove the center bolt and remove the out fairing.
• Disconnect the headlight connector and completely remove the outer fairing.

Step 2

If your motorcycle has the factory Boom Audio system or is a CVO do not go any further without reading the steps below:

To locate your BIN code in your factory GT radio do the following:

1. Power on your bike to accessory power
2. When the "Warning" screen appears on your head unit you're going to cover the mute and power button (lower right hand corner of the screen) with your thumb until the service menu appears - it'll take 5 seconds or so.
3. When the service menu appears, you're going to select: Audio --> EQ --> then select the "i" icon for information.
4. At this point you'll see something on the screen such as: Current EQ version: 17_OFF.bin Load new EQ?

For this example, you'd load your BIN number as 017 into the Diamond Audio radio following the instructions below.

Before proceeding to the next step below, make sure to hit "No" on the screen.

To locate your BIN code in your factory GTS radio do the following:

1. Hold your finger on the power/mute button while turning on ignition
2. Hold the power/mute button until the head unit powers up into the service menu - it'll take about 10 seconds.
3. When the service menu appears, release your finger
4. Press Audio
5. Press EQ
6. Press the "i" button on the right hand side of the screen
7. Then, your current BIN number will be displayed. It will say something like: Current EQ version: 178_OFF.bin. Load new EQ?

For this example, you'd load your BIN number as 178 into the Diamond Audio radio following the instructions below.

Before proceeding to the next step below, make sure to hit "No" on the screen.

Now, when you have your new Diamond MSHD14 plugged into the bike and powered up, do the following:

1. Go to the main screen
2. Select "Motorcycle Info" icon
3. Press the Gear/Settings icon (also known as Setup)
4. Press "Vehicle Settings"
5. Press "Amp Settings"
6. Press "Audio System"
7. This is the step you'll enter your BIN number found above. Tap each number the number of times for each number. So, if you wanted the code 178, you'd tap the first box 1 time, the second box 7 times and the third box 8 times. Then, hit okay.
8. Then it will ask you to confirm your selection and then select yes.

Remove the factory radio:

• Remove the fairing vent by removing the two T27 torx bolts.
• Disconnect the connector from the back of the gauge cluster.
• Remove the factory connectors from the top of the radio bracket.
• These are held in with Christmas tree type fasteners and can be removed with a panel removal tool.
• Remove all the connections from the back of the factory radio.
• Depress the tabs to remove the connectors.
• Depress the tab and swivel the rocker to unlock the main vehicle connector.
• Remove the mounting plate from the top of the radio:
• Using the 5/32 hex remove the screws on either side of the gauge cluster.
• Use a T20 torx bit to remove the bolt next to the UBS port.
• Use a 5/32 hex to remove the two bolts on either side of the tray.
• Remove the four bolt on the top of the mounting plate using a T20 torx.
• Grab the plate and pull straight back.
• Remove the gauge cluster:
• Remove the single bolt in the middle of the gauge cluster and remove.
• Remove the four 3/16 inch hex to remove the bolts securing each corner of the radio.
• Lift the factory radio up and out of the inner fairing.

Step 3

Remove the Right (Brake Side) speaker pod:

• Remove the power connection from the bottom of the speaker pod.
• Disconnect the speaker wire connector.
• Remove the three 7/16 in bolts holding in the bottom inside of the pod.
• These are located near the forks.
• Using a T25 torx bit remove the two bolts attaching the speaker pod to the tray on top of the radio.
• Use a 3/16 allen to remove the three remaining bolts holding the speaker pod to the inner fairing.

Step 4

Remove the Left (Clutch Side) speaker pod:

• Disconnect the speaker wire connector.
• Remove the three 7/16 in bolts holding in the bottom inside of the pod.
• These are located near the forks.
• Using a T25 torx bit remove the two bolts attaching the speaker pod to the tray on top of the radio.
• Use a 3/16 allen to remove the three remaining bolts holding the speaker pod to the inner fairing.

Step 5

Installing your new Diamond Audio 6.5 inch Horn Speakers:

• Remove the four T25 screws securing each speaker.
• Disconnect the wiring harness from the speaker prongs.
• You may need to gently wiggle them back and forth to release the spade connectors.
• Use the provided crossover, connect the 1/4 inch and 1/8th inch spade connector to the 1/4 inch and 1/8th inch prongs on the 6.5 inch speaker.
• Using the bare wire side of the crossover and the provided speaker wire pigtail, twist the red wires together and twist the black wires together.
• Insert the red wires into the red push terminal.
• Insert the black wires into the black push terminal.
• Connect the spade connector on the provided pigtail to the factory wiring from the speaker pod.
• Insert the speaker assembly into the speaker pod, being sure to line up the mounting holes.
• Secure the speaker into the pod with the provided black phillips head screws.
• We recommend starting all four by hand and than carefully tightening down with a screwdriver.

Step 6

Replace the speaker pods:

• Place the speaker pods back on the appropriate side of the fairing.
• Replace the three 7/16 in bolts holding in the bottom inside of the pod.
• Using a T25 torx bit replace the two bolts attaching the speaker pod to the tray on top of the radio.
• Use a 3/16 allen to replace the three remaining bolts holding the speaker pod to the inner fairing.
• Reconnect the power connection on the right (brake side) speaker pod.

Step 7

Installing your new MSHDHU14 radio:

• Place your radio into the inner fairing and secure using the four 5/32 hex bolts.
• We recommend leaving these slightly loose until all parts are in place.
• Connect the main harness to the back of the radio.
• Line up the factory connector and swivel the rocker till it locks into place.
• Connect the AM/FM antenna to the back of the radio.
• Connect the USB to the back of the radio.
• Install the provided microphone is you would like.
• Insert into the microphone port. We suggest routing the microphone up to the top of the inner fairing so that it can be mounted on the backside of the windshield. (Behind the windshield towards the rider)
• Install the Sirius XM tuner, if selected at checkout
• Install the Sirius XM tuner into the Sirius XM connector on the back of the radio.
• Install the supplied antenna to the tuner and mount the antenna.

Step 8

Installing the amplifier mounting plate:

• Remove the four T25 screws from the top plate located in the center of the top plate over the radio.
• Place the provided amplifier mounting plate over top of the top plate, being sure to line up the four holes.
• Secure with the four factory T25 screws that you just removed.
• We recommend starting all four by hand and than carefully tightening down with a screwdriver.

Step 9

Installing the MSTLINK harness:

• Insert the male factory connection into the rear of the radio.
• Connect the female main connector to the factory main connector from the motorcycle.
• Connect the four pin molex connector with RCA's labeled Front Left & Front Right to the Front Input.
• Connect the four pin molex connector with RCA's labeled Rear Left & Rear Rights to the Rear Input.
• Connect the four pin molex connector with White & Grey wires to the Front Output.
• Connect the four pin molex connector with Purple & Green wires to the Rear Output.
• Connect the provided blue remote turn on wire.
• Connect the male bullet connector to the female bullet connector coming from the Diamond Audio head unit.
• Place the other end with the wire ferrel into the REM port on the amplifier and secure using a 2mm allen.

Step 10

Mounting the amplifier:

• The kit will come with a few mounting options:
• We will provided four velcro squares that can be used to mount the amplifier to the amplifier bracket.
• The kit will come with velcro sheets that can be used.
• You may choose to drill into the mounting plate and secure using screws.

Step 11

Running the power and ground wires:

• For this step you will need to remove the seats and gas tank to expose the wire chase.
• Remove your seat.
• Remove the T40 bolts that secure the ECU plate on top of the battery, disconnect the two connections on the ECU plate.
• Remove the two T40 bolts that secure the front of the gas tank, near the forks.
• Remove the two T40 bolts that secure the bottom of the gas tank by the battery.
• Remove the fuel line by sliding the collar up and than pulling straight down.
• We recommend having a towel handy as a small amount of fuel may drip when the collar is removed.
• Remove the vent lines and lift the gas tank up and off the motorcycle.
• Once the wire chase is exposed, remove the cover by lifting the tabs around the edges.
• Remove the 60 AMP fuse from the inline fuse of the provided power wire.
• Route the power and ground wires in the wire chase.
• The end with wire ferrel will connect to the amplifier.
• The end with ring terminals will connect to the battery.
• Route the wires through the fairing on the Left side (clutch side) and towards the amplifier.
• Place the wire ferrel on the red power wire into the 12V in port on the amplifier and secure the wire ferrel with a 2mm allen wrench.
• Place the wire ferrel on the black ground wire into the Ground port on the amplifier and secure the wire ferrel with a 2mm allen wrench.
• Clean up the wires on the wire chase, you can use a few zip ties to hold everything in place.
• Connect the power wire to the positive battery terminal.
• Connect the ground wire to the negative battery terminal.
• Insert the 60 AMP fuse back into the inline fuse holder.
• Secure any extra power and ground wire.

Step 12

Check the functionality of your Stage 2 bundle:

• Turn the ignition on so that the radio powers on.
• Find a song that will play for at least a few minutes.
• Turn up the volume on your head unit to about 75% of the MAX volume.
• Using a small flathead screwdriver adjust the Front Gain (Front Speakers) until your desired sound level is reached.
• You can make any other EQ settings changes with in the head unit.

Step 13

Reassembling the motorcycle:

• Manage any loose wires: under the seat, in the wire chase or inside the fairing.
• Replace the bolts that secure the ECU tray.
• Reconnect the 2 connectors on top of the ECU tray.
• Replace the chase cover.
• Replace the gas tank.
• Replace the four T40 bolts that secure the gas tank.
• Run the vent lines for the gas tank.
• Reconnect the gas line by pulling the collar back and pushing back into place.
• Replace you seat.

Step 14

Replace the outer fairing:

• Reconnect the headlight connector.
• Place the outer fairing into place and secure with the center windshield bolt.
• Replace the windshield.
• Replace the three T27 torx bolts from the top of the fairing.
• Replace the four T27 torx bolts.
• There are two located on each side of the fairing.
• The shorter bolt is lower and long bolt is towards the top of the fairing.
• Remove the fender cover over the front fender.

Congratulations on installing your new
Diamond Audio Stage 2 + MSHDHU14 Bundle!