SHOULD I TRADE CARS WIT MY FRIEND?

I have a 1996 lincoln town car [presidential]. I just got it about 2wks ago. I like it but its reeeally BiG and hard to park sometimes. it drives nice&smoothe though. 1 thing I dont like about it is that it only has a stupid tape player. not a cd player or anything so I bought one. I havent got it put in yet though so I still cant hear my cd’s. and I HATE driving in a car wit no loud music. well 1 OF my good friends, he said he would trade me cars. he has a 2004 chevy cavalier. his car is waaay smaller than mine. he has a really nice bangin sound system in his car. its so tight I love it. he said that if I trade him cars he would still make the payments on his car like its still his. and another thing is he said I could KEEP his cd player and the speakers & amp and the whole sound system too. I don’t know what I should do…if I should trade him or not. the only down side is that I probly couldnt fit as many people in his car but still, id have his musikk. what do you think??