it 8 track, not cassette. cassettes didn't come about until the 80's. do what you want just do it right and i will be the defining what right is. it's 10-4 not 10-9. copy that and now go 10-100. don't think it do it, sure she's not crazy...yet.
yeah, it's a 73 B210 his older brother put in a cassette player and tried to wire in a few extra speakers too but only one still works. But the auto-reverse kicks ass. Just call him from outside 1001 and don't think he's going to tell you why.