Is it possible to connect an I Pod to the auxiliary socket in a vehicle with a round Jack Plug to access the stereo system?
G.Smith

It the car stereo has a 1/8th inch input jack in the front or on the back of the unit a 1/8th inch stereo patch cable with male connectors on both ends will work. There are also several other connector cables made to connect to auxiliary inputs on car systems. Units that transmit your iPod on an FM frequency are also available. Here are just some of the options (http://www.nextag.com/car-connector-ipod/products-html)