Amazon.com: DS18 JL-SB6 Plug & Play Sound Bar Enclosure Upgrade with 6.5" Neodymium Mid-Range and Tweeter Compatible with Jeep Wrangler JL/JLU | Gladiator JT Left and Right Speakers (Pair) : Electronics
Alpine SPV-65-JLT 6.5" Soundbar Speaker Upgrade for Jeep Wrangler JL & Jeep Gladiator JT - YouTube
Jeep Wrangler JL Stereo Upgrade by Car Stereo Chick