The plug-and-play wiring that puts a TM400X4ad amplifier on a 1998 – 2013 Harley-Davidson® Touring bike
The RFK-HD9813 is the amplifier installation kit for the Power Marine TM400X4ad amplifier on Harley-Davidson model years 1998 to 2013. It contains a mounting plate, a heat-sink and the full wiring kit, plus Y-adaptors for adding lower fairing or Tour-Pak® speakers and a rear speaker output harness for bag lid speakers. It integrates into the factory electrical system without modifications or cutting.
This is the part that turns an amplifier into an install. The cables have been upgraded to meet the current and voltage the amplifier asks for, the heat-sink gives extended thermal time under demanding conditions, and the mounting brackets suit both batwing and sharknose fairings.
Who This Is For
You are fitting a Power Marine TM400X4ad to a 1998 – 2013 Harley-Davidson Touring bike and you want the wiring done properly rather than spliced together. You might be buying the amplifier separately, or replacing a kit that went missing from a second-hand build. If you would rather buy the amplifier, speakers and wiring as one matched package, the 1998-2013 Street Glide® source unit, 4-speaker and amp kit and the 1998-2013 Road Glide® source unit, 4-speaker and amp kit include the equivalent wiring. For a 2014 or newer bike, the 2014+ Road Glide and Street Glide amplifier wiring kit is the corresponding part.
What This Is Best For
- A factory-friendly amplifier install. The kit integrates into the factory electrical system without modifications or cutting, with a plug and play design.
- Feeding the amplifier properly. The cables are FULL spec, meeting or exceeding AWG requirements, and are 100% pure Crystal-Oxygen Free Copper, upgraded to provide the current and voltage the TM400X4ad requires.
- Keeping heat under control. The supplied heat-sink provides extended thermal time under demanding situations, and the mounting plate gives the amplifier a proper home.
- Mounting on either fairing. Mounting brackets for batwing and sharknose fairings are included.
- Adding speakers later. A rear speaker output harness is included for bag lid speakers, and the Y-adaptors support expansion to lower fairing, saddlebag or Tour-Pak speakers.
Check your amplifier and your model year before ordering
The RFK-HD9813 is designed for use with the TM400X4ad amplifier and for 1998 – 2013 Harley-Davidson motorcycles, so it is matched to that amplifier and that model year range rather than to amplifiers in general. The listed suitability covers the 2006 – 2013 Street Glide Ultra, the 2006 – 2013 Street Glide, the 1998 – 2013 Electra Glide®, the 1998 – 2013 Road Glide Ultra and the 1998 – 2013 Road Glide. The amplifier itself is a separate purchase. If you are unsure which amplifier or which model year you have, tell us the model and year and we will check it for you.
Features
- FULL spec cable that meets or exceeds AWG (American Wire Gauge) requirements
- Plug and play design for easy installation
- 100% pure Crystal-Oxygen Free Copper (PC-OFC)
- Cables upgraded to provide the current and voltage requirements of the amplifier On the road: the cable is sized to carry what the amplifier actually draws, so the wiring is not the weak point when the system is working hard.
- Heat-sink provides extended thermal time under demanding situations On the road: that extra thermal time is what a long, hot Australian afternoon on the highway asks of an amplifier.
- Designed for use with the TM400X4ad amplifier
- Designed for use with 1998 – 2013 Harley-Davidson motorcycles
- Integrates into the factory electrical system without modifications or cutting On the road: the bike's own wiring stays as the factory made it, with no cut or spliced joins left behind in the fairing.
- Includes mounting brackets for batwing and sharknose fairings
- Includes a rear speaker output harness for connection of rear speakers
- Y-adaptors support expansion of lower fairing, saddlebag or Tour-Pak speakers
In the Box
- Amplifier mounting plate
- Heat-sink
- Wiring kit for the Power Marine TM400X4ad amplifier
- Mounting brackets for batwing and sharknose fairings
- Rear speaker output harness for bag lid speaker installation
- Y-adaptors for lower fairing or Tour-Pak speakers
Fitment
| Model | Requirement | Years |
|---|---|---|
| Street Glide Ultra | For use with the Power Marine TM400X4ad amplifier | 2006 – 2013 |
| Street Glide | For use with the Power Marine TM400X4ad amplifier | 2006 – 2013 |
| Electra Glide | For use with the Power Marine TM400X4ad amplifier | 1998 – 2013 |
| Road Glide Ultra | For use with the Power Marine TM400X4ad amplifier | 1998 – 2013 |
| Road Glide | For use with the Power Marine TM400X4ad amplifier | 1998 – 2013 |
Specifications
| Part | RFK-HD9813 amplifier installation kit |
| Designed for | Power Marine TM400X4ad amplifier |
| Vehicle years | Harley-Davidson model years 1998 to 2013 |
| Cable | FULL spec, meets or exceeds AWG requirements, 100% pure Crystal-Oxygen Free Copper (PC-OFC) |
| Thermal | Heat-sink for extended thermal time under demanding situations |
| Mounting | Mounting plate, brackets for batwing and sharknose fairings |
| Expansion | Rear speaker output harness for bag lid speakers, Y-adaptors for lower fairing, saddlebag or Tour-Pak speakers |
| Install | Plug and play, integrates into factory electrical system without modifications or cutting |
| Suitable for | 2006 – 2013 Street Glide Ultra and Street Glide, 1998 – 2013 Electra Glide, Road Glide Ultra and Road Glide |
Australia Shipping:
- Under $500 → $19.95
- $500–$2,500 → $14.95
- Over $2,500 → FREE
- Bulky items → +$24.95 surcharge (waived over $2,500)
Fast dispatch from Brisbane. Same-day shipping on in-stock orders before 1pm AEST.
Change-of-mind returns: We accept returns within 7 days of delivery on unused, unopened products in original sealed packaging. Restocking fees apply (20–30%). Return shipping is the customer's responsibility.
No returns on opened audio gear, installed items, custom orders, or special-order products. Please check fitment carefully before installing.
Faulty or incorrect items: If you experience an issue, contact us with photos/video and your order number. We'll assess the claim and arrange repair, replacement, or refund for verified faults under the Australian Consumer Law.
Fitment assistance: If you're unsure about compatibility, reach out before ordering—we're happy to help.