Dealer installation is recommended.
Kit Number
For model fitment information, see the P&A retail catalog or the Parts and Accessories section of (English only).
Installation Requirements
DO NOT mix Stage I and Stage II speakers on the same vehicle.
These speakers are for use ONLY on 2014 and later Harley-Davidson audio systems. Using these speakers on 2006-2013 Harley-Davidson audio systems WILL permanently damage these speakers. Using these speakers on 2005 or earlier Harley-Davidson audio systems WILL permanently damage those systems.
Radio EQ MUST be updated by a Harley-Davidson dealer BEFORE operating the audio system. Operating the audio system prior to radio EQ update will IMMEDIATELY damage the speakers. (00645d)
Radio EQ update using the Digital Technician® II diagnostic tool is only available through authorized Harley-Davidson dealers. This tool is:
  • Required before audio system OPERATION.
  • Recommended before speaker INSTALLATION
Rider and passenger safety depend upon the correct installation of this kit. Use the appropriate service manual procedures. If the procedure is not within your capabilities or you do not have the correct tools, have a Harley-Davidson dealer perform the installation. Improper installation of this kit could result in death or serious injury. (00333b)
This instruction sheet references service manual information. A service manual for this year/model motorcycle is required for this installation. One is available from a Harley-Davidson dealer.
Electrical Overload
When installing any electrical accessory, be certain not to exceed the maximum amperage rating of the fuse or circuit breaker protecting the affected circuit being modified. Exceeding the maximum amperage can lead to electrical failures, which could result in death or serious injury. (00310a)
It is possible to overload the vehicle's charging system by adding too many electrical accessories. If the combined electrical accessories operating at any one time consume more electrical current than the vehicle's charging system can produce, the electrical consumption can discharge the battery and cause damage to the vehicle's electrical system. (00211d)
The purchase of this kit entitles you to a specially developed sound equalization software that is used with the Advanced Audio System. This unique equalization was designed to optimize the performance and sound response of the BOOM! Audio fairing lower speakers. If this kit is not installed by a Harley-Davidson dealer, this special equalization software is available without charge from any dealer through Digital Technician II. Dealer labor rates may apply for the upgrade procedure.
This amplifier requires up to 8 amps more current from the electrical system.
Kit Contents
See Figure 2 and Table 1.
To prevent accidental vehicle start-up, which could cause death or serious injury, remove main fuse before proceeding. (00251b)
  1. See the service manual. Remove main fuse.
  1. See Figure 1. Remove four well nuts (1) from each speaker enclosure. Install captive nuts (2) into each hole from inside the enclosures.
  2. Attach the speaker wire connectors inside the speaker enclosure to the spade terminals on the back of the new rear pod woofer speaker. Different size spade contacts prevent improper assembly.
  3. NOTE
    The rear speakers are side-specific. The right side speaker trim ring has the text "BOOM! AUDIO STAGE II" at the top. The left side has no text.
  4. See Figure 2. Connect the two-way audio connectors on the amplifier harness [36TB and 37TB] to the mid-range and tweeter connector (B).
  • Connector [36TB] to the right speaker.
  • Connector [37TB] to the left speaker.
1. Rotate the speaker assembly (1) so the tweeter bridge (A) is 45 degrees outboard from the top.
2. Install the speaker assembly onto the speaker enclosure with the four screws (C) removed earlier.
a. Start screws carefully to avoid pushing the captive nuts through the mounting holes.
b. Use a cross-wise pattern to tighten all four screws.
Torque: 1.13–10 N·m (10–89 in-lbs)
3. Repeat steps 1-5 for the remaining rear speaker enclosure.
1Remove well nut (4)
2Install captive nut (4)
Figure 1. Remove and Replace Rear Speaker Enclosure Nuts
To prevent possible damage to the audio system, verify that the ignition and audio system are OFF before installing the main fuse.
Radio EQ MUST be updated by a Harley-Davidson dealer BEFORE operating the audio system. Operating the audio system prior to radio EQ update will IMMEDIATELY damage the speakers. (00645d)
  1. See the service manual. Install main fuse.
  2. Have a Harley-Davidson dealer update the radio EQ using Digital Technician II.
  3. Turn the ignition ON, but do not start the motorcycle.
  4. Refer to the BOOM! BOX INFOTAINMENT SYSTEM section of the owner's manual. Turn the radio ON. Make sure that all speakers are working and front/rear fader function is operating correctly. If not, check speaker wiring.
Avoid direct contact with speaker grilles by a pressure washer. Damage to speakers can result.
Figure 2. Service Parts, BOOM! Audio Stage II Rear Speaker Kit
Table 1. Service Parts
Description (Quantity)
Part Number
Speaker assembly, rear pod
(left) (includes items 2-4)
(right) (includes items 2-4)
  • Speaker assembly, woofer
Not sold separately
  • Speaker assembly, tweeter/midrange
Not sold separately
  • Screw, flat head (3)
Not sold separately
Captive nut (8)
Items mentioned in text, but not included in kit.
Mid-range and tweeter connector
Original screw (8)