Our Overhead Console solves several space problems for the hard top truck owner. It allows you to have a dome light in your, otherwise, light-less interior. It also gives you an overhead speaker system for your music system and cell phone, as well as a place to mount your CB radio (CB not included). These can be used with 12v or 24v systems. This will fit hard top 5-ton military vehicles. No drilling needed for installation. The complete Overhead Console unit comes with 6" x 9” speaker system (for cell phone and music only), three military grade sealed toggle switches, three resettable breakers and dome light. The speaker has a standard headphone jack coming off its control unit that plugs into your iPhone, iPod, iPad or other brand phones and music devices. These complete overhead consoles feature an amplifier, stereo, and a 24v-12v converter.