Hogtunes G4-RG-RM – QC 225-RM Amp & G4 Front Speaker Kit for Road Glide (2015–2023)
The Hogtunes G4-RG-RM kit is a complete front-stage audio upgrade designed for 2015–2023 Harley-Davidson® Road Glide models. This package combines the compact QC 225-RM 4-channel Class D amplifier with a pair of G4 462RG-RM 6.5" front speakers engineered specifically for the Road Glide fairing.
Featuring a Road Glide–specific amp mounting plate and a plug-and-play harness, this kit installs cleanly without wire cutting. The G4 speakers deliver stronger midbass, improved vocal clarity and a more dynamic sound compared to factory Harley speakers.
Key Features
- QC 225-RM 4-channel Class D amplifier powers front speakers with headroom for future expansion.
- G4 462RG-RM 6.5" Road Glide speakers for stronger midbass, smoother highs and improved projection.
- Road Glide-specific amp mounting plate included for a clean, OEM-style install.
- 100% plug-and-play wiring harness – no splicing required.
- On-bike acoustic tuning ensures clarity and punch at highway speeds.
- Compatible with factory Harley-Davidson radios and aftermarket head units.
Why Riders Choose This Kit
- Perfect front-only upgrade for Road Glide riders wanting more volume and clarity.
- Superior G4-series speaker design with better cone control and cleaner output.
- Amp included – not just a speaker swap.
- Expandable using the remaining amp channels for rear or saddlebag speakers.
What’s Included
- 1 × QC 225-RM 4-Channel Class D Amplifier
- 1 Pair G4 462RG-RM 6.5" Road Glide Front Speakers
- Road Glide plug-and-play harness
- Road Glide amp mounting plate
- All required installation hardware
- Installation Manual
Fitment
- 2015–2023 Road Glide – FLTRX
- 2015–2023 Road Glide Special – FLTRXS
- 2016–2019 Road Glide Ultra – FLTRU
- 2020–2023 Road Glide Limited – FLTRK
Technical Notes
- Class D amplifiers may reduce FM reception – this is normal.
- QC-series amps include R.E.M.I.T. for improved FM performance.
- Best FM reception is achieved using the factory external antenna.
Specifications
| Amplifier | QC 225-RM – 4-Channel Class D |
| Front Speakers | G4 462RG-RM – 6.5" |
| Wiring | Road Glide plug-and-play harness |
| Mounting | Road Glide amplifier mounting plate included |
Recommended Use
- Ideal for riders wanting a strong, clean front-stage Road Glide upgrade.
- Perfect base system for adding rear or saddlebag speakers later.
- Works with factory or aftermarket head units.
Related collections
This part is listed in: All 2014–2023 Touring Audio · Complete Audio Systems · Wild Boar / Hogtunes – Complete Kits · Fairing Speakers
Australia Shipping:
- Under $500 → $19.95
- $500–$2,500 → $14.95
- $2,500 and above → FREE
- Bulky items → +$25 surcharge (waived once your order reaches $2,500)
Fast dispatch from Brisbane. In-stock orders placed before 1pm AEST usually ship the same business day.
Change of mind: Request a return within 30 days of delivery. The product must be unused, unopened and in its original sealed packaging, valued at $50 or more, and you'll need an RMA number from us before sending anything. Return freight is yours, and a restocking fee of up to 15% may apply – we'll confirm any fee before the return is accepted.
Not returnable for change of mind: opened, installed or test-fitted items, special-order and custom products, custom harnesses, completed tuning, gift cards and items under $50.
Fitment: If we confirmed fitment in writing based on accurate bike details and it doesn't fit, we'll put it right and cover reasonable freight. Not sure? Ask us before you order – we're happy to help.
Faulty, damaged or wrong item: Contact us first with your order number. Faults follow our RMA and warranty process, and none of this affects your rights under the Australian Consumer Law.