It wasn't me that hacked the cassette player, it was Smojo as I say in the credits. But, I think it kind of goes like this: dissconnect the motor, you don't need it. Fit a 1/4" guitar socket somewhere. Dissconnect the wires that come from the tape heads and reconnect them to the 1/4" socket. That's about it. If that's not right, my apologies. Even though I've not yet had a go myself, I do know it's pretty simple in theory. The tricky bit, I believe, is just getting at components, and u won't know what you're dealing with until you get the back off your player. I haven't checked, but there may be a hacking group on the Nation somewhere. All the best.