HT413
Semi Pro Bowler
Here's one. Just have to make sure it's a 12v model for a car. Most are 110v for homes.
http://www.hifisoundconnection.com/Shop/Control/Product/fp/vpid/7534770/vpcsid/0/SFV/30046
http://www.hifisoundconnection.com/Shop/Control/Product/fp/vpid/7534770/vpcsid/0/SFV/30046