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Trail Grid Pro

Toyota 4Runner Under-Seat Amplifier Mounting Bracket | '03 - '24 4Runner

Toyota 4Runner Under-Seat Amplifier Mounting Bracket | '03 - '24 4Runner

Regular price $64.95 USD
Regular price Sale price $64.95 USD
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Shipping & returns

Orders over $99 ship free in the lower 48. Most in-stock gear leaves the warehouse the next business day. Wrong fitment? Send it back within 30 days — we'll help you find the part that does fit.

Fitment & build help

Not sure if this fits your platform? Tell us your year, make, model, and trim — we'll confirm before you order. For bigger builds, we'll help you plan the full stack.

Warranty

Every product on this site ships through authorized channels with full manufacturer warranty. If something breaks in normal use, we'll help you get it resolved.

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Upgrade your audio system the clean, secure way with the AudX Universal Amplifier Mounting Bracket—engineered to fit all 2003–2024 Toyota 4Runner models. Whether you drive a fourth-gen or fifth-gen, this bracket offers a strong, reliable foundation for your amplifier install without the guesswork.

Crafted in the USA from durable steel and finished in a sleek, corrosion-resistant black powder coat, this bracket is built to last. It’s designed to mount neatly under either the driver or passenger seat, providing a low-profile and discreet solution for installing your aftermarket amp while preserving cabin space.

Ideal for use in both amplified and non-amplified Toyota 4Runner audio upgrades, this bracket works universally with most amplifier brands and models. It’s compatible with Trail Grid Pro’s plug-and-play amp kits and fits seamlessly with other Alpine, Kicker & AudX system components.

Key Features:

  • Compatible with 2003–2024 Toyota 4Runner models (all trims)
  • Secured by factory seat bolt locations and hardware
  • Universal design fits under driver or passenger seat. Simply drill holes to match the footprint of your amplifier and secure your amp to our bracket with the proper hardware. 
  • Precision laser-cut steel construction
  • Durable black powder-coated finish
  • Made in the USA
  • Designed for clean, factory-style amp installs

Tech Specs:

  • Material: Steel
  • Finish: Black powder coat
  • Fitment: Driver or passenger seat mounting in Toyota 4Runner
  • Compatibility: Most standard-size amplifiers
  • Measurements: 14 ⅛" W x 7 ⅛" H

Trail-Ready and Installer-Approved
This AudX bracket is a go-to choice for DIY installers and professional shops alike, making amplifier mounting fast, secure, and hassle-free—no drilling or custom fabrication required.

  • Free shipping over $99

    Orders over $99 ship free in the lower 48. Most in-stock gear leaves the warehouse the next business day.

  • Wrong fitment? We make it right.

    If a part doesn't fit your platform the way it should, send it back. We handle the return and find you the part that does.

  • Authorized dealer support

    Every product moves through proper channels. Full manufacturer warranty, real tech support — no gray-market headaches.