I want to buy a CD/Cassette player for my 94 camry. I am thinking of getting one from ebay, or some online store. How do I know which model number will fit in my car?

Thanks!

most cd players will fit into your car. as long as they aren't specifically made for a different vehicle. they only difficult thing is re-wiring the wiring harness. just fyi, i have a pioneer deh-1400 for sale, $80 shipped to the lower 48 states.
any additional questions, please feel free to ask.