wa8yxm: I maybe don't understand your last paragraph.
But, you can use a aux cord from the headset output of a cassette player to the input of the aux on a car radio to play tapes.
Also, you can use audacity to copy from tape cassettes to a computer using the same aux cord.
I agree, I have a couple of MP3 players both of them "Remember" where they were when you turn them off and pick up at the same point,
BOth of them can be fed to the dash radio AUX in as well. or "I-Beamed" to the dash.
I also use Mini-Disc, but that's kind of hard to find now days, works the same way only nicer.
Of course if you are a masochist you could always stream the book to cassette *NO, After Steptember I won't even have the ability to play Cassettes, Had to take back a deck I gave to the church to do the ones I'm transfering to Mini-Disc now, When that job is done (likely about Aug-1) I'll be giveing the deck back to teh church and the tapes ... To a dealer I knwo. Some of them are collector's items.
Home is where I park it.
Kenwood TS-2000 housed in a 2005 Damon Intruder 377