Can you change a tape cassette player in your car to a CD player of your choice?

Can you change a tape cassette player in your car to a CD player of your choice? - 1
Added (1). I am learning to drive a car and I have been browsing on the internet for any cars to buy so that I had one waiting for me once I pass. I ended up buying a Ford Fiesta 2002 from a family friend for £500. It's only done 9,000 miles so I had to take it. Anyway because of this car being so old it has a tape deck/cassette player rather than a CD player. I was wondering if you can change it so I can listen to CD's or connect my phone to listen to music?

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