I’m fairly new to Macs. My Pro 16 does not have audio-in port. I have 2 cassette players (cassette to USB player with usb-port and headphone jack, and portable cassette with AUX, headphone jacks). No matter how I connect them Preferences>Sound>Input won’t recognize them as input devices. Preferences>Sound>Output does though. I’ve connected cassette players via USB to lightning, 3.5mm to lightning, and 3.5mm to Mac’s headphone jack (hopeful but no expectation). What do I need, from soup to nuts, to get this to work? From cassette player with proper output ports to cables to settings. Any ideas?