I tryed putting my MP3 stock deck into my dad's 01 f150. He use to have just a am/fm cass deck. It worked for like a day then no sound came out of it. It worked when I plugged it back in the ranger though. It's always worth a try!
If you scroll down further, I asked about these 6CD stackers and got a lot of good response. Be sure to check it out. Mine gave up, so I'm going back to single when I find one. 6CD stackers mechanisms are fragile.