Kicker Plug & Play Subwoofer & 5-Channel Amp Kit | '03 - '23 4Runner – Trail Grid Pro
Amazon.com: QPower 10 Inch Easy Set Dual Ported 36 Hz Subwoofer Enclosure Car Audio Fiberboard Box with Durable Bed Liner Finish for Toyota Tundra, Black : Electronics
2005 Toyota 4Runner JBL gets a simple subwoofer upgrade! — Twelve Volt Technologies