Just finished the install over the weekend for my stereo. Added an 200 watt 4 speaker marine grade Pyle Stereo. The speakers are rectangle like used in a surround sound system so I mounted them to the roll bars under the roof. It has a USB for Ipods and a SD card slot. Stayed away from the CD player as I figured the rough ride would have made it pointless. Found a marine grade "rubber duck" antenne at Walmart.com for $9 so I have AM/FM channels as well. My girls ran 2 tanks of gas thru her over the weekend just driving around listening to music... HAHA