Using Power Outlet

I'm new to this so hope someone can answer. Rather than install the cassette player in my new EX '01, I may opt for using a RadioShack player/recorder for those rare occasions I want to listen to books on tape. (Frankly, I'm in love with the auto-dimming/temp/comp mirror as my fun-money expenditure.) Can I buy a converter to use with the electric plug on the recorder, and just plug it into the the power outlet near the floor? If so, are the converters readily obtainable, and are there different kinds? Thanx.