I was given this Pioneer equipment. The amp was dead and I had it restored. The tech who worked on it doesn't like tape decks much. I asked him about going through this one. He said "what for"? I said, I have a few old cars with cassette players and could make some tapes from my vinyl. He kind of rolled his eyes at me. One of the problems with these vintage decks is the rubber bits degrade over time.
I have an old Sanyo from probably the late 70s in my 1970 914. I do have some old jazz mix tapes that were my Dad's. They are probably 30 years old or more. They still sound ok.