How to Transfer Music from Computer to iPod (touch) in 2 Ways
How to Put Songs on Your iPod Without Using iTunes « iPod & MP3 Players :: WonderHowTo
Car AUX Input Mode Cable for iPod Phone MP3 3.5mm AUX in Audio Music Adapter Cable for Mercedes Benz W169 W203 W209 W251|car aux input|aux inputcar aux - AliExpress
3 Easy Ways to Transfer MP3 to iPod with and without iTunes