I have a bunch of old microcassette tapes that I'd like to digitize. (Old messages from my deceased parents so they are important to save for my sentimental self). Nobody makes microcassette players anymore and good working old ones are expensive but I have an old answering machine that uses them but it has no earphone or audio output jack. Is this as simple as connecting a jack to the speaker wires or do I need to be concerned with impedance or such things? (I don't have much knowledge of electronics but I'm good with a soldering iron). Once I have an audio output, I know what to do from there as I've done it with lots of standard sized cassettes. Any help would be appreciated. Thanks!