BOSSCO BHD3F User manual
0121
BHD3F HARLEY DAVIDSON FRONT SYSTEM
FITS SELECT 1998+ HARLEY DAVIDSON
ROAD GLIDE AND STREET GLIDE
MOTORCYCLES
The BHD3F is the first of its kind to fit 1998 to present Harley Davidson
Road Glide and Street Glide models all in one package. This simple to
install Plug-n-Play solution is an all inclusive package that features a NEW
compact high power Four-channel Class D Amplifier, a pair of 6.5” 2-Way
Weatherproof Loudspeakers as well as all of the mounts, hardware and
connections to make the installation seamless. The BHD3F delivers the
outstanding sound and performance everyone wants at a price you can
afford.
Mid Bass Driver:
6.5” (165mm)
poly injection cone
rubber surround
Tweeter:
1” (25mm) Polymer dome tweeter
Crossover network:
Built-in
Impedance:
4 Ohms
Power Handling:
150W MAX
Frequency Response:
105Hz - 20kHz
Sensitivity:
91dB (1 watt/1 meter)
Dimensions:
6-9/16” (W) x 2-5/8” (H) x 6-9/16” (D)
(167 (W) x 66 (H) x 167 (D) mm)
Amplifier:
4 Channel class D Amplifier
8-3/8” (W) x 1-5/8” (H) x 4-1/4” (D)
(212 (W) x 40 (H) x 108 (D) mm)
BHD3F
It has been engineered to bring you
the highest level of performance.
Its quality will afford you years of
listening pleasure.
Harley Davidson
Front System
Congratulations on
your purchase of a
POWERSPORTS Speaker System.
Thank you for making your
choice for POWERSPORTS
entertainment!
(1) HD Street Glide Grills (x2)
(2) HD Tour Pak Grills (x2)
(3) HD Road Glide Grills (x2)
(4) Boss Audio 6.5” Speakers (x2)
What is included?
Before you begininstallation please check that your system
contains the following contents:
Speaker install kit contents:
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. This kit may not be compatible with
some aftermarket head units.
Dimensions:
Speaker
Amplifier
(1) (2) (3)
(4) (5)
(7) (8)
(6)
(5) Speaker adapters (x2)
(6) EVA for speaker adapter (x2)
(7) Screw bag for speaker
(8) Screw bag for speaker adapters (5x25mm 3PC)
90°
Ø157mm
45°
2.6”
(66mm)
5.5”
(140mm)
6.6”
(167mm)
2.3”
(59.5mm)
1PC
8PC 8PC
4x25mm
3PC
5x25mm
8.3”
(212mm)
4.3”
(108mm)
4.3”
(108mm)
1.6”
(40mm)
BHD3F
Harley Davidson Front System
GETTING STARTED
HD Front Speaker installation
1998 – 2013 Street Glide /Batwing models:
1. Protect all painted surfaces.
2. Remove seat and disconnect negative battery terminal.
3. On 2009 and later models, it will help to remove the two T40 bolts, the ECM and tray
1. Cover the front fender.
2. Remove (2) T-27 Torx bolts from inner fairing (under mirrors)
3. Remove (2) T-27 Torx bolts from outer edges of inner fairing near the fork tubes (facing forward)
4. Remove (3) T-27 Torx bolts from bottom edge of windshield.
Note: Windshield and fairing will be loose once these screws are removed. Use extreme caution not
to damage fairing or windshield. Lift away and unplug headlight to remove outer fairing.
5. Remove windshield taking caution that the outer fairing is loose.
6. Lift away and unplug headlight to remove outer fairing.
7. Remove the remaining speaker screws and the speaker. Continue to kit assembly Loosen (6) T-25
Torx bolts from bottom, middle and top of left and right sides of the inner fairing.
BHD3F
Harley Davidson Front System
BHD3F
Harley Davidson Front System
1. Cover the front fender.
2. Remove (2) T-27 Torx bolts from inner fairing (under mirrors)
1. Cover the front fender.
2. Remove (2) T-27 Torx bolts from inner fairing (under mirrors)
2014 – 2020 Street Glide / Batwing models:
1998 – 2013 Road glide / Shark nose models:
Note: Windshield and fairing will be loose once these screws are removed. Use extreme caution not to
damage fairing or windshield. Lift away and unplug headlight to remove outer fairing.
5. Remove windshield taking caution that the outer fairing is loose.
6. Lift away and unplug headlight to remove outer fairing.
7. Remove the remaining speaker screws and the speaker. Continue to kit assembly Loosen (6) T-25
Torx bolts from bottom, middle and top of left and right sides of the inner fairing.
1. Loosen (6) T-25 Torx bolts from bottom, middle and top of left and right sides of the inner fairing.
BHD3F
Harley Davidson Front System
BHD3F
Harley Davidson Front System
2. Lift away the fairing, unplug the headlights and remove.
4. Remove the speaker screws and the speaker.
1. Using 3 of the screws in the provided hardware, mount the speaker adapter to the inner fairing. The
4th inner bottom screw locations are not used on FLH/ batwing models. For Road Glide models,
rotate the adapter until the notches in the adapter do not hit the factory mounting posts, and make
sure the flat spots on the outside of the adapter are toward the outer edge of the fairing.
2. Mount the new speaker with the hardware provided with the speakers. Do not re-use the factory
screws. (Figure B) Note: For the Roadglide and Sharknose models, the longer screw may be needed
in the lower mounting hole depending on the new speaker.
2014 + Street and Road Glide
78
(1) Ultra Classic Street Glide and Tri Glide bracket (x1)
(2) Road Glide mounting bracket (x1)
(3) Road Glide mounting bracket (x1)
(4) Universal Amp mounting plate (x1)
(5) Road Glide Amp mounting bracket (x1)
(6) Front speaker input for the Amplifier (White/Black) (x1)
(7) Front speaker input for the Amplifier (Gray/Black) (x1)
(8) Input from Amplifier front (x1)
(1) Amplifier (x1)
(2) Remote wire (x1)
(3) Front output harness (x1)
(4) Rear output harness (x1)
(5) Front input harness (x1)
(6) Rear input harness (x1)
(7) Wrench (x1)
Amplifier and Amp plate Installation
1998 – 2013 FLH/Batwing models:
BPS400.4 4 Channel Class D Amplifier Contents
BHD34 Amplifier Mounting Plate Kit Contents
(1)
(1)
(4)
(2)
(3)
(5)
(6)
(7)
(8) (9) (10)
(11) (12)
(13)
(14)
(15)
(16)
(9) Output from Amplifier front (x1)
(10) Remote wire and pin (x1)
(11) Power/Ground harness (x1)
(12) Rear speaker input/output harness (x1)
(13) Rear speaker connector (x2)
(14) Screw Bag (x1)
(15) Nylon spacers (x4) + Double sides tape (x4)
(16) Wire Zip Tie Wraps (x8)
(2)
(3)
(4)
(5)
(6)
(7)
BHD3F
Harley Davidson Front System
BHD3F
Harley Davidson Front System
HD Street Glide 98 – 13
HD Road Glide 98 – 13
With the front faring removed. Using the Type(4) bracket, align bracket on the bottom side of the mounting
plate using the bracket type indicators. On the top edge, you will screw in the two threaded pins into the
mounting plate. These are used to align the mounting plate with the rubber bushings on top of the
factory radio.
Step 1 - Mounting Plate and Bracket Mounting
910
Step 2 - Mounting Plate and Bracket Mounting
Using the Type(1) and Type(4) brackets, align bracket on the bottom side of the mounting plate using
the bracket type indicators. On the top edge, you will screw in the two threaded pins into the mounting
plate. These are used to align the mounting plate with the rubber bushings on top of the factory radio.
Step 2 - Mounting Plate and Bracket Mounting
Using the Type(2),Type(3) and Type(4) brackets, align bracket on the bottom side of the mounting
plate using the bracket type indicators. After you have the bracket attached to the mounting plate,
remove the clutch side fairing bulkhead nuts. Place the bracket over the studs pushing the bracket
upwards while tightening down using the factory hardware.
Step 3 - Amplifier Mounting
Mount amplifier upside down with the supplied screws to the mounting plate. Align the amplifier
to the appropriate holes on the plate.
Aluminum
Heat Sink
Double sides
tape
Screws
Nylon Spacers
Aluminum
Heat Sink
Screws
Bracket
(Type 5)
2014 & Up - Street Glide
2015 & Up - Road Glide
1998 & 2013 - Road Glide
Aluminum
Heat Sink
Brackets
BHD3F
Harley Davidson Front System
BHD3F
Harley Davidson Front System
Aluminum
Heat Sink
Threaded Rod
Bracket
Screws
1998 & 2013 - Street Glide
Screws
HARNESS INSTALLATION
3. Plug the harness into the amplifier and route the speaker wires to their respective locations.
Separate the speaker connectors and plug in the amplifier harness to each speaker.
4. Plug the 4-pin male, rear audio connector into the 4-pin female rear audio signal connector
coming from the radio harness.
5. Plug the switched power harness into the 2-pin amp connector on the throttle side of the fairing.
6. Plug the Supplied blue wire on the Boss Audio Amplifier kit into the switched power harness lead
with one wire. This allows for an accessory 12V port to remain available.
7. Route the power leads along the clutch side of the frame neck, in the electrical caddy to the seat area.
8. Reconnect the battery terminals and pull the excess harness slack back into the fairing. Create a slack
loop with excess harness slack.
9. Plug the radio in and set the gain.
10. Test component function and set the gain to optimize system performance.
11. Carefully reassemble the motorcycle and enjoy your new audio kit
Note: Refer to the motorcycle manufacturer owner’s manual for bike. instructions regarding
gas tank removal.
1211
5 - Routing Power Harness / Rear Speaker Harness
Pass the Power / Ground Harness and Rear Speaker Harness through the fairing and route next to the
factory wiring harness. Routing the new wire harnesses along with the factory harness is recommended.
Be sure to zip tie the harnesses together for a clean, tight fit. Due to the size wire for the Power / Ground
Harness and Rear Speaker Harness, it is recommended to route the wiring under the gas tank along the
top of the frame on the motorcycle.
Step 6 - Rear Speaker Installation
With the seat already removed, route the Rear Speaker Harness toward the rear of the motorcycle over
the fender along the brake side of the motorcycle. Unplug factory speaker wires from the speaker and
plug them directly into the Rear Speaker Input / Output Harness. These are labeled clutch and brake side.
If you have a 2020 Street or Tri Glide, the following steps must be completed before amplifier installation:
Remove four screws from the HD Connect Module. Remove Module from Bracket.
Relocate Module to the clutch side of the radio and secure with two 8” zip ties included.
1. Fasten the amplifier to the bracket with the supplied hardware.
Insert the bolts through the bottom of the bracket and install the locknuts to the amplifier.
2. After finishing System Setup, use the supplied hardware and fasten the amp/bracket assembly
to the radio chassis with the 10-pin connector and power connector facing the throttle side.
NOTE: There may be some connectors that will need to be relocated off the radio
chassis for the amp bracket to fit.
Amplifier and Amp plate Installation 2014 – Newer
Street Glide FLHT/Batwing models:
AMP INSTALLATION
*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/
Amplifier Wiring
Step 3 - Amplifier Mounting
Mount amplifier upside down with the supplied screws to the mounting plate. Align the amplifier to the
appropriate holes on the plate.
Step 4 - Fairing Speaker Wiring
Unplug the factory speaker wires from the speaker and plug them directly into the Front Speaker Input
Harness. These are labeled clutch and brake side. Now you can plug the new Front Speaker Output
Harness onto your new speaker terminals. Route power / ground through fairing. Including installing
rear speaker wires, feed the Rear Speaker Input / Output Harness through fairing towards the rear of
the speaker.
Once the amplifier is mounted, you can now begin plugging in the wiring harness in their appropriate
sockets. Plug the switched power harness into the 2-pin amp connector on the throttle side of the fairing.
Note: Be careful when plugging in the harnesses to the appropriate socket. The 4-pin Molex plugs for the
Input / Output Harnesses fit in both sides of the amplifier.
BHD3F
Harley Davidson Front System
BHD3F
Harley Davidson Front System
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
Table of contents
