Located just beneath the doors, the Mod Pods throw unobstructed sound toward the driver and passenger. They sound great with the doors on and the combat road noise with the doors off. They make use of wasted space and are contoured to fit snugly against the jeep body. Constructed of 1/8" plastic, the units can withstand years of abuse. Purchase them empty or with Profile® 5 1/4" car audio speakers. These are coaxial speakers with a polymica cone to withstand the elements and provide rich, clear midrange and bass. The titanium dome tweeter produces crystal clear highs. They can handle 60 watts of continuous power and have frequency response of 50-22,000 Hz. Very nice! They also employ a metal mesh grille so a wayward shoe won't damage the speakers ,although once the units are installed we bet you'll never do so since they fit so snugly against the Jeep body. The Mod-Pod™ is secured to the vehicle with two self-drill hex-head screws per pod. They have a wire lead hole so the speaker wires easily conceal beneath the carpet as they are run up to the radio. Directions and hardware included. The Mod-Pod™ is designed to fit the Wrangler TJ, but can be adapted to fit the YJ and CJ as well. Usually the YJ and CJ models will require a spacer usually 1/2" or so, placed under the pods so that they will run nicely along the bottom of the door opening. CJ and YJ models require that the self drill screws are put through the bottom of the pods and into the floor of the jeep. The use of T-nuts, available at your local hardware store, is another option for a great install in CJ and YJ Wranglers. Just drill out the base of the pods to place two T-Nuts in each unit. Run corresponding - sized bolts through the T-Nuts and as they push against your vehicles's floor they will raise the pods and wedge them against the door channel. TJ owners have a hand parking brake between the seats while YJ CJ owners have a foot activated parking brake- the driver's side pod will not interfere with using the brake. Mod Pod Speakers for your jeep 11472S$139.95 If you have questions you can reach us toll free at 1-800-699-5337.