I read a lot of really negative reviews about this little cable, but decided to take a chance on it anyways...My husband and i have an "aux-input" on our car stereo and didnt want to use the giant regular "line-out" cord we purchased earlier.This little retractable cable fits so snuggly in the plug, and i've never had a problem stretching it out, or having it retract back in (been using for over a month). You just have to be gentle with it from what i've seen so far.I also like how small and discreet it is, when i leave the car, its less obvious that i have my MP3 player plugged in and sitting out.Great value, nice little cord, perfect for your car stereo.