Speakers sound best when they're in enclosures, and that's why you need the Select Increments Dash-Pods with Kicker 5.25" Speakers. The result of adding these high quality speakers and Dash-Pod enclosures is a much richer mid-range and stronger, deeper bass. These Dash-Pods hold 5.25" speakers and utilize the available space in your Jeep Wrangler TJ. If you have the 7-speaker Infinity system that was offered beginning in 2002, you can improve on the 4" dash components and replace them with the Dash-Pods holding the larger 5.25" speakers.