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Trail Grid Pro

Speaker Wiring Harness Adapter Kit | '14 - '21 Tundra

Speaker Wiring Harness Adapter Kit | '14 - '21 Tundra

Regular price $48.60 USD
Regular price $54.00 USD Sale price $48.60 USD
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Shipping calculated at checkout.
Factory Amplified System?

In stock

Quantity

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 2014–2021 Toyota Tundra’s sound system the right way with Trail Grid Pro Speaker Adapters — the same adapters featured in our popular Alpine Tundra Speaker Kits.

Designed, tested, and built for a plug-and-play installation, these adapters let you install the speakers of your choice while keeping all factory wiring 100% intact. No cutting, no splicing — just a clean, OEM-style connection that makes your upgrade simple and secure.

JBL Amplified or Non-JBL Amplified?

  • If you have a JBL logo on the top of your door speakers then you have a JBL Amplified System.
  • If you don’t have a JBL logo on your door speakers but you have an amplifier under your drivers side or passenger side seat then you have a non-JBL Amplified System.
  • If you do not have a JBL logo on the top of your door speakers nor have an amplifier under your drivers side or passenger side seat then you have a Non-Amplified System.

We offer three configuration options to match your Tundra’s factory setup:

  1. JBL Amplified – 10 Speaker Adapters
     (2x dash, 4x front door, 4x rear door)
    Does not include adapters for subwoofer or center channel speaker.
  2. Amplified Non-JBL – 8 Speaker Adapters
     (2x dash, 2x front door, 4x rear door)
  3. Non-Amplified – 6 Speaker Adapters
     (2x dash, 2x front door, 2x rear door)

Whether you’re pairing these with an Alpine upgrade bundle or building a custom system, Trail Grid Pro Speaker Adapters make it easy to achieve premium sound and perfect fitment without modifying your factory harness.

Compatible Vehicles:

  • 2014–2021 Toyota Tundra (All Trims)
  • 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.