I took another look, it is NOT dual cassette as I thought. It says "Executive 4000" on it, single cassette player with AM/FM and although we haven't hooked up a TV, there is a jack right behind that looks like a standard AV screw plug like my cable in my home has. I did realize that the portable sirius is a better option, as I can move it from the truck when we are mobile, to the trailer. However, I'd still like to upgrade it to play CD's and be able to have an AV jack for my iPod/iphone. It would seem that all I really need then is a simple tuner, old school like I have at home. Is this right? I won't be able to listen to DVD's through the built in speaker system however?