13
14
HARNESS INSTALLATION
4. Plug the harness into the amplifier and route speaker wires to their respective connectors.
Separate the speaker connectors and plug in the amplifier harness to each speaker.
Important: Over-tightening mounting fasteners may result in damage to your motorcycle. Please refer
to your service manual for proper procedures and torque specifications. Boss Audio is not responsible
for damage resulting from improper installation techniques.
5. Plug the switched power harness into the 2-pin amp connector on the throttle side.
6. Plug the blue wire on the Boss Audio harness into the switched power harness lead with one wire.
This allows for an accessory 12V port to remain available.
7. Route both power leads along the clutch side of the neck and through the electrical caddy to the
seat area.
8. Reconnect the battery terminals.
9. Plug the radio in, but do not reinstall it until the gain has been set.
10. Test component function and set the gain to optimize system performance.
11. Carefully reassemble the motorcycle and enjoy your new audio system!
1. Remove the radio.
Unplug the four connectors on the back of the radio.
Remove the four Allen head bolts holding the radio to the chassis.
Gently remove the radio from the chassis.
2. Install the Boss Audio amplifier onto bracket Type(4) with supplied hardware.
Slide the end of the amplifier with the power connector port into the bracket and fasten with
supplied hardware. Install the bolts from the bottom and fasten the locknuts onto the amplifier.
3. Carefully install bracket/amplifier assembly onto radio chassis by installing the assembly
through the radio face port in the fairing and sliding the tabs of the bracket over the chassis.
The amp bracket assembly mounts under the radio.
Amplifier and Amp plate Installation 2014 – Newer
Road Glide FLTR 2015 – Newer:
*NOTE* after installation this vehicles head unit must be flashed to
get proper sound from the upgraded system. Please see the following
link to find a recommended HD shop that can flash the stock system.
https://technoresearch.info/tuning-centers-map/
This kit comes ready to plug directly into 2014 & Up Harley-Davidson Motorcycles using the factory style
connectors. If you are installing on a 1998-2013 motorctcle, you will need to use the wire connector
adapters to connect to the factory wire harness and new speakers.
NOTE: This wiring diagram is for a standard 4-Channel amplifier installation. If you are using a 2-Channel
amplifier, DO NOT use the Rear Input / Output Harness.
FRONT
REAR
Clutch Side
Front Speaker
(Connect to factory speaker wire)
Front Speaker
(Connect to factory speaker wire)
Front Speaker
(Connect to speaker)
Front Speaker
(Connect to speaker)
Rear Speaker
(Connect to speaker)
Rear Speaker
(Connect to speaker)
Front Speaker Input Harness
Rear Speaker Input Harness
Rear Speaker
Output Harness
Speaker Input / Output Harness (Rear)
Power Harness
REM (Blue)
2014 & Up Remote Wire
Input Harness - Clutch
Output Harness - Clutch
Output Harness - Brake
(Connect to factory speaker wire)
Input Harness - Brake
(Connect to factory speaker wire)
Front Speaker Output Harness
(98-13 Adapter)
(98-13 Adapter)
(98-13 Adapter)
(98-13 Adapter)
Brake Side
BHD3F
Harley Davidson Front System
BHD3F
Harley Davidson Front System
