2014-2023android-autoApple CarPlayharley-touringhead-unitmaestroproduct-comparisonreserve-v2soundstreamwhd-unlocwhd14-plus

Soundstream Reserve V2 vs WHD14+: Which Head Unit Is Right for Your Harley Touring?

Product Comparison · Harley Head Units

Replacing the factory radio in a Harley-Davidson Touring model is not just about better sound. It is about modern connectivity, clearer displays, reliable integration with the bike's systems, and audio that actually works at highway speeds in Australian conditions. SoundStream makes two head units engineered specifically for Harley Touring: the flagship Reserve V2 (model code HDHU.V2, and often simply called the V2; 2014-2023 Boom! Box Touring) and the simpler WHD14+ (2014-2023, plus selected later Boom! Box carryover models where confirmed), with the optional WHD.UNLOC kit adding full CAN bus integration to the WHD14+.

Quick answer: The Reserve V2 is the flagship: the largest 8.3-inch screen, built-in GPS, wireless headset audio for rider and passenger, Rally Mode and a 200W 4-channel built-in amplifier. The WHD14+ is a clean 7-inch upgrade for riders who value simplicity, and with the optional WHD.UNLOC kit it adds full CAN bus integration, on-screen gauges and Boom! amp retention via iDataLink Maestro RR2. That gives three tiers: WHD14+ alone, WHD14+ with WHD.UNLOC, or the Reserve V2. Both install as no-cut, direct-fit replacements; full factory-amplifier retention and CAN bus gauges need the correct Maestro module (WHD.UNLOC on the WHD14+).

Fitment note: both units replace the factory Boom! Box radio on supported Harley Touring models. They do not replace the Skyline OS display on the redesigned 2024+ Street Glide and Road Glide, for which there is currently no direct-replacement aftermarket head-unit option. If your 2024 bike has the wide 12.3-inch Skyline screen, these units do not apply; if it has the 6.5-inch Boom! Box (as on the 2024 carryover models), they do. Confirm your platform before ordering.

Quick Comparison

Feature Reserve V2 WHD14+ WHD14+ with WHD.UNLOC
Screen 8.3-inch QLCD, 1000 NIT ultra-bright 7-inch optically bonded QLCD, 1000 NIT 7-inch optically bonded QLCD, 1000 NIT
Wireless CarPlay / Android Auto Yes (wireless + wired USB) Yes (wireless + wired USB) Yes (wireless + wired USB)
GPS navigation iGo Primo built-in (AU maps via Naviextras.com) No built-in GPS, phone-based via CarPlay/AA No built-in GPS, phone-based via CarPlay/AA
Handlebar controls Basic thumb controls included; full mapping via Maestro RR/RR2 (sold separately) Basic thumb control module included Advanced thumb control mapping via Maestro RR2
Factory amp integration Via Maestro RR/RR2 (sold separately; bike and amp dependent) Not supported Boom! Stage 1, Stage 2, HD Audio via Maestro RR2
On-screen gauges and warnings Via Maestro (50-plus params, up to 10 gauges, pop-up warnings) No Via Maestro RR2 (40-plus params, up to 10 gauges, pop-up warnings)
Headset integration Yes, up to 2 headsets (rider + passenger), no WHIM required No No
Rally Mode Yes, unlimited riders can pair to your stream No No
Backup camera RCA input with 12V trigger (camera sold separately) RCA input with 12V trigger (camera sold separately) RCA input with 12V trigger (camera sold separately)
Built-in amplifier 200W, 4-channel, Class A/B, 2-ohm stable Class-D, 4-channel, 2-ohm stable Class-D, 4-channel, 2-ohm stable
Pre-amp outputs 4V RCA (front, rear, sub) 5V RCA (front, rear, sub) 5V RCA (front, rear, sub)
EQ / tuning 15-band EQ + independent crossovers 13-band EQ + crossovers 13-band EQ + crossovers
Weather rating IPX5-rated faceplate IPX5-rated faceplate IPX5-rated faceplate
Factory Boom! Box fitment 2014-2023 Touring 2014-2023 (+ select Boom! Box carryover) 2014-2023 (+ select Boom! Box carryover)
Warranty 5 years 2 years 2 years
Best for Long-distance touring, group rides, premium builds Clean daily upgrade, simplicity first Full OEM integration without the V2 price

Why Motorcycle-Specific Matters

These are not car stereos adapted for bikes; they are engineered around the Harley Touring fairing and its electrical system rather than a car dashboard. What that means in practice:

  • Harley-specific chassis and harnessing: both use the OEM mounting points and Harley radio harness, so they fit the factory location and connect without cutting or splicing.
  • Weather protection: an IPX5-rated faceplate is protected against direct water spray when correctly installed, suited to an exposed fairing rather than an indoor dashboard.
  • Optically bonded display: the glass is bonded directly to the panel, which improves contrast in daylight and prevents condensation between the layers.
  • Motorcycle-oriented interface: large touch targets and OEM handlebar control integration, designed for single-glance use with gloves on.
  • Integration with your bike: with the correct iDataLink Maestro interface, these units talk to the Harley CAN bus to retain controls, support factory amplifier setups where applicable, and display bike data and warnings on screen.

Display and Visibility

The Reserve V2 has an 8.3-inch QLCD with a 1000 NIT ultra-bright backlight, a meaningful advantage in harsh midday glare, with wide viewing angles and a fast touchscreen designed for use with compatible riding gloves.

The WHD14+ uses a 7-inch optically bonded QLCD, slightly larger than the factory Boom! Box GTS's 6.5-inch display, and the bonding makes it noticeably sharper. Optical bonding removes the internal air gap between the glass and the panel, which improves contrast and prevents condensation between the layers, with the same 1000 NIT brightness in a compact screen.

Connectivity

A note on microphones (both units). Both ship with a microphone. In practice we do not recommend most riders install it: at highway speed on a Harley, wind and road noise make hands-free calling effectively unusable. It is there if you want it.

Wireless CarPlay and Android Auto. Both head units support wireless Apple CarPlay and Android Auto, connecting when you start the bike. For long days you can still plug into the factory USB in the cubby for charging and, in some cases, a more stable connection on 10-plus hour rides.

Where the Reserve V2 adds more:

  • Navigation options: phone-based (Apple Maps, Google Maps, Waze, with offline regions for poor coverage) plus iGo Primo built-in navigation that works independently of your phone. Australian maps are not pre-loaded; they are purchased and updated through Naviextras.com.
  • Wireless headset integration: pairs directly with Cardo, Sena and other Bluetooth headsets, up to two at once for rider and passenger, without a WHIM module. Each headset can receive navigation prompts, music, or both.
  • Rally Mode: broadcasts your playlist to Rally Mode equipped riders around you, with unlimited riders able to pair to a single broadcaster's stream, for bike nights and group runs.

The WHD14+ covers the same wireless CarPlay and Android Auto and Bluetooth 5.0 audio, with phone-based navigation. The difference is no built-in GPS, no headset integration and no Rally Mode, so if you do not need those features, you are not paying for them.

Audio Performance

The HDHU.V2 has a 200W 4-channel built-in amplifier (Class A/B, 2-ohm stable), with a 15-band EQ and independent front/rear crossovers. That gives it more built-in amplifier capability than a basic source unit, though riders chasing serious highway-speed output will still benefit from an external amplifier. It also provides 4V RCA pre-outs (front, rear and subwoofer) for integration with external amps.

The WHD14+ has an efficient Class-D 4-channel amp, 2-ohm stable, with a 13-band EQ and active crossovers for front, rear and subwoofer, plus 5V RCA pre-outs. It is a clean speaker-upgrade foundation and a solid base for a multi-amp build later. On either unit, the preamp outputs hand a strong, low-noise signal to a downstream amplifier.

Motorcycle Integration

Harley Touring bikes use a CAN bus. For full functionality (gauges, factory amplifier retention and advanced handlebar mapping) you need proper integration between the head unit and the bike's electronics.

The Reserve V2 handles CarPlay, Android Auto, GPS, headset integration and Rally Mode with no extra modules. For full CAN bus integration, an iDataLink Maestro RR or RR2 module (sold separately) adds up to 10 real-time gauges from 50-plus parameters, pop-up warnings, retention of Boom! Stage 1, Stage 2 and HD Audio OEM amplifiers on supported models, and full OEM handlebar control retention with advanced mapping.

The WHD14+ includes a thumb control module for basic handlebar control out of the box (volume, track skip, call answer/end). For full GTS-style integration, the WHD.UNLOC kit adds an iDataLink Maestro RR2 CAN bus module, a plug-and-play harness (no splicing) and WHD14+ firmware activation. With WHD.UNLOC and Maestro RR2, the WHD14+ gains up to 10 gauges from 40-plus parameters, pop-up engine warnings, full programmable thumb-control mapping, and Boom! Stage 1, Stage 2 and HD Audio amplifier retention across the 2014-2023 Boom! Box Touring range. MAA pre-configures the Maestro RR2 for your specific model when ordered with the WHD14+, so it arrives ready to install.

Installation

Both units are plug-and-play replacements using factory mounting points and Harley-specific harnessing: no cutting, no splicing, no permanent modifications. The Reserve V2 uses OEM mounting hardware with no brackets or trim rings; the WHD14+ uses the factory bracket and hardware. Both connect through the OEM radio harness via the supplied loom.

Which One Is Right for You?

Choose the Reserve V2 if you:

  • Tour long distances regularly and want the largest, brightest display
  • Want wireless headset integration for rider and passenger without a WHIM module
  • Ride in groups where Rally Mode is useful (bike nights, club runs, charity rides)
  • Want built-in GPS navigation that works off-phone (AU maps via Naviextras.com)
  • Are building a bigger audio system and want maximum onboard power and tuning depth
  • Want the longest warranty (5 years through MAA)
  • Are on a 2014-2023 Boom! Box Touring model

Choose the WHD14+ if you:

  • Want a clean, modern replacement for an ageing factory radio without flagship complexity
  • Primarily use your phone for navigation and daily audio
  • Do not need wireless headset integration or Rally Mode
  • Are on a 2014-2023 Boom! Box Touring model (or a later Boom! Box carryover model, confirmed on request)
  • Want a clear upgrade path to full OEM integration via WHD.UNLOC when you are ready

Choose the WHD14+ with WHD.UNLOC if you:

  • Want full Maestro integration (gauges, Boom! amp retention, advanced thumb controls) without the Reserve V2 price
  • Do not need wireless headsets, Rally Mode or built-in GPS
  • Want MAA to pre-configure the Maestro module for your specific bike before it ships

Frequently Asked Questions

Does the WHD14+ fit a 2024 Harley Touring?

Its primary fitment is 2014-2023 Boom! Box Touring, plus selected later Boom! Box carryover models where explicitly confirmed. It does not replace the wide 12.3-inch Skyline OS display on the redesigned 2024+ Street Glide and Road Glide, for which there is currently no direct-replacement aftermarket head-unit option. Confirm your screen and platform before ordering for a 2024 bike.

What is the main difference between the Reserve V2 and WHD14+?

The Reserve V2 is the flagship, with a larger 8.3-inch screen, built-in GPS, wireless headset audio, Rally Mode and a 200W 4-channel built-in amp. The WHD14+ is a simpler, clean 7-inch upgrade. With the WHD.UNLOC kit, the WHD14+ adds full CAN bus integration (gauges, Boom! amp retention, advanced thumb controls) at a lower price than the V2.

Can the WHD14+ keep my Boom! factory amplifier?

Yes, with the WHD.UNLOC kit and its iDataLink Maestro RR2 module, the WHD14+ retains Boom! Stage 1, Stage 2 and HD Audio amplifiers on supported bikes, plus on-screen gauges and advanced handlebar mapping. Without WHD.UNLOC, the WHD14+ does not support factory amp retention.

Does the Reserve V2 built-in GPS work in Australia?

Yes, via iGo Primo, but Australian maps are not pre-loaded; they are purchased and updated through Naviextras.com. For most riders, phone navigation through CarPlay or Android Auto is the more practical day-to-day option, with the built-in GPS as an off-phone backup.

Which has the bigger screen and longer warranty?

The Reserve V2 has the larger screen (8.3-inch versus the WHD14+'s 7-inch) and the longer warranty (5 years versus 2 years through MAA). The WHD14+ has a lower entry price and adds coverage of selected later Boom! Box carryover models on top of the shared 2014-2023 fitment.

Is the Reserve V2 the same as the HDHU.V2, SoundStream V2 or Precision Power V2?

Yes. They are all names for the same head unit. HDHU.V2 is the model code, and SoundStream and Precision Power are sister brands under Epsilon Electronics, with the HDHU head unit range sold under both names over the years. So whether you have seen it called the SoundStream Reserve V2, SoundStream V2, Precision Power V2, HDHU.V2 or simply the V2, it is the same unit compared in this guide: the SoundStream Reserve V2 (HDHU.V2). For the full naming breakdown across both brands, see our head unit names decoder.

Not Sure Which Head Unit to Choose?

Tell us your exact model and year, whether the bike has a factory amplifier, and what you want from the system, and we'll recommend the Reserve V2, WHD14+, or WHD14+ with WHD.UNLOC.

Get in Touch →

Shop the products compared

Ready to choose? Shop the Harley Touring head units compared here (2014-2023 Boom! Box Touring, plus selected later Boom! Box carryover models).

Not sure what fits your bike? Contact Motorcycle Audio Australia with your year, exact model, factory radio, current speaker locations and whether the bike has a factory amplifier, and we'll confirm the right parts →

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