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Upgrade your 2025+ Toyota 4Runner’s audio system the easy way with Trail Grid Pro Speaker Wiring Harness Adapters — the same plug-and-play harnesses featured in our super popular 4Runner Alpine and Kicker Speaker Kits. These adapters let you install the speakers of your choice while keeping all factory wiring completely intact for a clean, OEM-style connection. No cutting or splicing — just seamless installation and premium sound performance. JBL Amplified or Non-JBL Amplified? JBL Amplified System: If you have a JBL center speaker on your dash. Non-JBL System (Base Audio): If you do not have a JBL logo’d center dash speaker. We offer two configuration options to perfectly match your 4Runner’s factory setup: JBL Amplified – (2x dash, 2x front door, 2x a-pillar, 2x rear door, 2x rear door tweeter, 2x back hatch) Non-Amplified – (2x dash, 2x front door, 2x rear door) Whether you’re replacing worn-out factory speakers or upgrading to an aftermarket setup, these harnesses make installation quick, reversible, and 100% plug-and-play. Compatible Vehicles: 2025+ Toyota 4Runner (All Trims)
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🇺🇸 Ship from USA · On Agora since 2026
$48.60