Kia EV9 Subwoofer Install | Huge Bass With minimal Loss of Cargo Space

Kia EV9 subwoofer installation mounted to the back of the third-row seat using the factory tether. Clean, solid bass upgrade with no drilling and full seat functionality. This video shows mounting, wiring, amp placement, and tips specific to installing audio in an EV. Vehicle: 2024 Kia EV9 (GT-Line / AWD compatible). See the Reddit link below for the post I initially made finding the subwoofer wires and the wire harness and the rear passenger door sill   / mxfa8bigke   https://a.co/d/3Smb8HE SubAmp 10" https://a.co/d/ajtDAbp HDPE board https://a.co/d/aTTjHUh U-bolts https://a.co/d/eALcAa4 silicon 22 gauge wire https://a.co/d/9YYkNxl wiretap kit https://a.co/d/1ame1cC wire kit Everything under $165 current pricing as of 1/19/2025