OEM Audio Plus

Captain of Your Soundtrack

4Runner Systems

Designed and tuned specifically for your 5th Generation (’10-Current) Toyota 4Runner. Guaranteed to deliver unmatched sound reproduction, seamless integration, and uncompromising reliability. You can expect unparalleled clarity, loudness, and deep bass response without impeding vocals the moment you plug-in.


Reference 500

  • Power Amplifier w/ 64-Bit DSP
  • O+ Signature Sound Reproduction
  • Complete Speaker Replacements
  • 4Runner Subwoofer System (Sold Out)
    • Receive priority on next batch (Aug 2022)

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System 500

  • Multi-Channel Power Amplifier
  • 64-Bit Digital Signal Processor
  • O+ Signature Sound Reproduction
  • 4Runner Subwoofer System (Sold Out)
    • Receive priority on next batch (Aug 2022)
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Speaker Upgrades

  • Front 1″ Soft Dome Tweeters (2)
  • Front 6 x 9 Woofers (2)
  • Rear 6.5″ Woofers (2)
  • Rear 6.5″ 2-Way Coaxial Speakers (2)

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*IMPORTANT NOTE: Due to an increase in demand, our current Subwoofer batch for this season is SOLD OUT.  Therefore you can order our complete C3 Solution (everything less the subwoofer) and get notified when we resume accepting orders for the next batch of our signature 8″ subwoofer system (August 2022). Once the Subwoofer System is available, we will give existing orders first right of refusal so you can add the Subwoofer configuration of your choosing to your listening experience. This upgrade will be for just the difference in the product price, and no duplicate installation. Since you will have all the necessary wiring, you can simply plug the subwoofer(s) in and enjoy your complete sound system.

Kit Includes

    • Multi-Channel 64-Bit DSP Power Amplifier
    • Pre-calibrated High-Resolution Signature Sound
    • 4Runner-Specific Subwoofer System
      • OPTIONAL: Dedicated Subwoofer Amplifier
      • OPTIONAL: Secondary Subwoofer System
      • Quick-Sync Wiring Harness

      Reference 500 & Speaker Upgrades Only

      • Front 1″ Soft Dome Tweeter (Reference 500 & Speaker Upgrades)
      • Front 6″ x 9″ Carbon Fiber Woofer (Reference 500 & Speaker Upgrades)
      • Rear 6.5″ Wooferd
      • Rear Hatch 6.5″ 2-way Coaxial Carbon Speakers (w/ 1″ Tweeter)



  • Powers & Remasters All Speakers + Subwoofer
  • 360 Watts RMS (Continuous / @ 2-ohms) 
  • Cirrus-Logic 64-Bit Digital Signal Processing
  • Real-time system diagnosis for trouble-free operation 
  • Meets all OEM standards including AEC-Q100


  • 8″ Quad Voice-Coil Subwoofer
  • Genuine Carbon Fiber Cone Woofer
  • 100W RMS (200 Peak)
  • Sensitivity 88.9dB (1 W,1M)
  • Frequency Response: 20 -1000 Hz
  • * Dual Subwoofer System Optional


  • Adds More Headroom + Low-Frequency Extension
  • 500 Watts RMS
  • Class D (95% efficient)
  • Includes Gain Control Knob for precision adjustability
  • *Can be added in the future seamlessly


  • Maintains all factory functionality
  • Constructed of genuine OEM connectors
  • Fuse Holder Assembly is element proof butt-connectors w/ built-in solder
  • < 4lbs / 1.8kg

Reference 500 & Speaker Upgrades Only


  • Silk soft dome
  • 4-ohms
  • 50W RMS (100 Peak)
  • Sensitivity 91.8 dB (1 W,1M)
  • Frequency Response: 3,000-20,000 Hz
  • Built-in 6db/Oct. High Pass Filter
  • Neodymium Magnet Structure

FRONT 6″ X 9″ WOOFER (Reference 500 & Speaker Upgrades)

  • Carbon Fiber Cone Woofer
  • 2-ohms
  • 50W RMS (100 Peak)
  • Sensitivity 90.2 dB (1 W,1M)
  • Frequency Response: 50-12,000 Hz
  • Neodymium Magnet Structure


  • Carbon Fiber Cone Woofer
  • 2-ohms
  • 50W RMS (100 Peak)
  • Sensitivity 86.5 dB (1 W,1M)
  • Frequency Response: 55-14,000 Hz


  • Featuring 1″ Tweeter
  • Carbon Fiber Cone Woofer
  • 2-ohms
  • 50W RMS (100 Peak)
  • Sensitivity 90.2 dB (1 W,1M)
  • Frequency Response: 55-20,000 Hz

Reference 500

Engineered specifically to perform together.

Our speakers were honed out of a rigid performance criteria akin to how high-end audio loudspeakers are designed. This level of design and engineering allows us to replace the stock speakers with complete drop-in speaker replacements that deliver seamless, full-range, detailed sound reproduction of instruments and voices without localizing the speakers - a trait commonly associated with fine high-end home audio speakers.

4Runner Subwoofer System.

Enjoy deep, non-localized low frequency reproduction.
Subwoofer design is tailored specific for the 5th generation 4Runner. Subwoofer fits flush to drivers side rear panel and easily removable to access the tire jack. You can expect deep, impactful bass reproduction (as long as it's in the recording).


• Superior dynamics, volume, and impact
• Engineered for the perfect fit
• Rigid performance criteria


  • All the emotional weight of your music
  • 14 liter sealed fiberglass cabinet
  • Installs seamlessly into rear storage area


Highly efficient Class HD Speaker Amplifier
• Powers and remasters all speakers + subwoofer
• Superior dynamics, volume, and impact
• 360 Watts RMS (Continuous / @ 2-ohms)
Subwoofer Amplifier (Optional)
• Subwoofer gain control knob.
• 320 Watts RMS (Continuous / @ 4-ohms)

64-Bit Digital Signal Processing

• Calibrated to deliver high-resolution audio upon plug in
• You can expect seamless, full-range, detailed sound reproduction
• Extremely powerful 64 bit processing power and sound optimization
• 295 MHz DSP Chip | Class HD Topology

It sounds unbelievable. Really what I was impressed with was the placement of the front stage. The vocals and the strings can clearly be pulled out of the music

Sean Hollman

Motor Trend

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