Diamond Audio Motorcycle Radios
No Headset Bypass Required
Diamond Audio head units replace the factory radio, so there is nothing left to unlock. No bypass needed on any Diamond Audio unit — HogPlay parts plug straight in.
Running a Diamond Audio head unit on your motorcycle? HogPlay makes wireless Apple CarPlay adaptors, USB Piglets, media boxes and screen upgrades that work with these 3 units. Pick your radio below and we'll show you exactly what fits.
Diamond Audio radios we cover
- Diamond Audio MSHD14 — Harley-Davidson 2014-2023
- Diamond Audio MSHD9813RG — Harley-Davidson 1998-2013
- Diamond Audio MSHD9813SG — Harley-Davidson 1998-2013
Because a Diamond Audio unit replaces the factory radio, a bypass adaptor doesn't apply — there's no factory head unit left to unlock. What HogPlay adds instead: USB Piglets bring Mirror Link and AirCast screen mirroring, which no head unit does on its own, and Media Boxes add Netflix, YouTube and other streaming apps to your dash.
Choose your radio
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About Diamond Audio
Diamond Audio is a mobile audio manufacturer based in Los Angeles, California. The company says it has been building high-fidelity audio systems for over 30 years, and it is best known in the car audio world for amplifiers, speakers, subwoofers and sound processing. Today the range spans car, marine, motorcycle and powersports, including vehicle-specific integration kits.
The motorcycle side of the business is built around Harley-Davidson. Alongside amplifiers, speakers and tweeters, Diamond Audio sells Harley-specific hardware — radios, speaker systems, lid kits, wiring kits, grills and kick pods — so a bike can be built up as a matched system rather than assembled from parts that were never meant to work together.
Their head units are the part riders notice. Diamond Audio's Plug N-Play Digital Media Receivers replace the factory radio on Harley touring bikes and are designed around the realities of riding: a 7-inch 1000 NIT touchscreen you can read in direct sun and operate with gloves on, IPX6 water resistance, and a 10-channel DSP with time delay and crossovers built into the head unit instead of a separate box. The company developed the MSHD14 with feedback gathered at rallies including Sturgis and Daytona Bike Week.
Frequently asked questions
Who is Diamond Audio and why choose them for my Harley?
Diamond Audio is an LA-based mobile-audio manufacturer with over 30 years in car and powersport audio, and its Harley-Davidson line was built around rider feedback gathered at Sturgis and Daytona. The Plug-N-Play Digital Media Receivers use a 7″ 1000-NIT glove-friendly touchscreen, IPX6 weatherproofing, and a 10-channel DSP built right into the head unit — a serious spec sheet for a direct-fit factory-style upgrade.
Which Diamond Audio unit fits my touring Harley?
If you’re riding a 2014–2023 Touring model (Street Glide, Road Glide, Ultra, Road King, and siblings), the Diamond Audio MSHD14 is your unit — it uses the internal Maestro RR2 module with 6 aux triggers for a clean factory-style install. Not sure which year band you’re in? Run your bike through the fitment finder to confirm before you buy.
Which Diamond Audio unit fits an older Road Glide?
For 1998–2013 Road Glides, the Diamond Audio MSHD9813RG is the direct-fit option, built to that era’s fairing and dash opening. Double-check your exact model year against the fitment finder first, since trim details can shift the cutoff.
Which Diamond Audio unit fits an older Street Glide?
For 1998–2013 Street Glides, reach for the Diamond Audio MSHD9813SG — it’s the Street Glide-specific version of the same 7″ plug-and-play platform. Run your VIN or year/make/model through the fitment finder to lock in the right SKU.
Does Diamond Audio have wireless Apple CarPlay and Android Auto?
Yes — every Diamond Audio Harley head unit in this lineup (MSHD14, MSHD9813RG, MSHD9813SG) has native wireless Apple CarPlay and native wireless Android Auto built in. Diamond Audio’s own product pages don’t always spell out the Android Auto side, but it’s there on every model — you’re not choosing between the two.
Do Diamond Audio head units need a bypass to install?
No. These are aftermarket, plug-and-play replacement head units, not a factory-radio unlock, so there’s no bypass procedure involved — the unit itself is the upgrade.
What does HogPlay add on top of a Diamond Audio head unit?
Will a Diamond Audio unit fit my 2024+ Road Glide or Street Glide?
Not currently. 2024-and-newer Touring models run Harley’s Skyline infotainment on an A2B digital audio bus, and there is no aftermarket drop-in receiver — Diamond Audio or otherwise — for that platform. Confirm your exact model year on the fitment finder before ordering.
More questions (6)
How does a Diamond Audio unit install compared to the stock radio?
Each Diamond Audio unit is molded to slot into the stock dash or fairing opening for its model range, using the factory harness and mounting points, so the install reads as a factory upgrade rather than a custom dash job. Wiring specifics (like the MSHD14’s Maestro RR2 integration) vary by model — see each model page for the details.
Are Diamond Audio Harley units weatherproof?
Yes — the line carries IPX6 weatherproofing, and the touchscreen is rated at 1000 NIT so it stays readable in direct sun, which matters more on a bike than in a car.
How does Diamond Audio compare to other aftermarket Harley radio brands?
Diamond Audio’s edge is the built-in 10-channel DSP and the larger 1000-NIT touchscreen, both baked into the head unit rather than sold as add-ons. Every option we carry gets you wireless CarPlay at minimum; if native wireless Android Auto specifically is the deciding factor, Diamond Audio has it built in across the whole range, where some competing brands do not.
I’m not sure which year my bike is — how do I find the right Diamond Audio radio?
Run your bike through the fitment finder with your model and year (or VIN) and it’ll point you to the correct Diamond Audio SKU, whether that’s the MSHD14, MSHD9813RG, or MSHD9813SG.
What kind of support backs a Diamond Audio purchase?
Diamond Audio builds its Harley line as a dedicated product category, not a side project, backed by three-plus decades of mobile-audio manufacturing experience. HogPlay handles fitment guidance and add-on support (Piglet, Media Box) on our end, so you’ve got a second line of help beyond the manufacturer if questions come up.
Can I run streaming apps directly on a Diamond Audio screen?
The head unit itself is built around CarPlay and Android Auto for navigation, music, and messaging through your phone. If you want native app playback and local SD/USB media without going through your phone, that’s exactly what the HogPlay Media Box adds on top.
Ride safe: on-screen video is for parked viewing only — never watch video while the motorcycle is in motion. Music, audio and navigation are made for the road.
