Hogtunes NCA 40.4 Installation Manual

Hogtunes NCA 40.4 Installation Manual

For use on 1998-current harley davidson flht/c/x and fltr* models

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D
E
ESIGNED AND
NGINEERED IN
T
G
A
HE
REAT
MERICAN
NCA-40.4
INSTALLATION
MANUAL
For Use On 1998-Current
Harley Davidson FLHT/C/X
and FLTR* Models
*Hogtunes RG 40.4 Adaptor Kit is Required if Installing
this Amp in an FLTR Road Glide!
Version 1.2
C
F
ANADA
OR
C
RUISER
Thank you for choosing the Hogtunes
NCA 40.4 Amplifier for your bike.
Since positive word of mouth is the best way
to grow our business, we want your new
system to work as well as it was designed to.
If you have any questions or
concerns, we are here to help.
Email: info@hogtunes.com
Tel: 705-719-6361
A video version of this manual is available at
www.hogtunes.com.
If you still need assistance, please
consider a professional installation by
your motorcycle dealer.
IMPORTANT: The NCA-40.4 makes its best power when
powering 2 ohm speakers. Running higher impedance
speakers (eg, 3,4,6, or 8 ohm) will reduce the amplifier's power output!
The NCA-40.4 amplifier cannot be used if any external amplifier is
already on the bike. This includes CVO Models with the factory amplifier
under the tour-pak!! This kit will work on CVO models if the factory
amplifier and its wiring have been removed.
Harley-Davidson, Electra Glide, Road Glide, Street Glide, Ultra Classic, Tri Glide, CVO, Screamin Eagle and Tour-Pak are
Trademarks, and/or Registered Trademarks of Harley-Davidson, Inc., Milwaukee, Wisconsin, USA, and if Used or Implied
are for Reference Only. There is No Affiliation Between Harley-Davidson, Inc. and Hogtunes Inc.
2

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Timothy N Cox
July 18, 2025

i can get no bass on rear speakers

Summary of Contents for Hogtunes NCA 40.4

  • Page 1 *Hogtunes RG 40.4 Adaptor Kit is Required if Installing Trademarks, and/or Registered Trademarks of Harley-Davidson, Inc., Milwaukee, Wisconsin, USA, and if Used or Implied this Amp in an FLTR Road Glide! are for Reference Only. There is No Affiliation Between Harley-Davidson, Inc. and Hogtunes Inc. Version 1.2...
  • Page 2 4 pin plug on the rear harness will plug into the “rear out” which is a white socket Note: If this amplifier is being mounted in a FLTR “Road Glide”, Hogtunes Part on the output side of the amp. The other white connector on the same end of this RG 40.4 Adaptor Kit is required.
  • Page 3 When correctly installed, the power and ground wires are the right length to connect to the Note: If wiring to speakers other than Hogtunes, the smaller battery, and if used, the rear wire 8 pin harness is the right length to be zip-tied to the clutch connector on Hogtunes products is always positive (+) side fender strut.
  • Page 4 Take a rear speaker and plug the female connectors of the amp harness into the speaker. Repeat this step using the longer wires on the clutch side of the bike. If using Hogtunes Rear Speaker Pods, the wires will enter through a “slice” in the vinyl on the lower inside part of the box.

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