Not all 3.5mm jacks/sockets are created equal?

[mikeymikec]

While my Nexus 5 is out of commission (likely definitely), I'm borrowing my wife's old phone (Alcatel OneTouch Idol S). It does something I've never seen before - it ignores anything else plugged into its 3.5mm audio socket except for standard headphones, which means no kitchen speakers while I wash up and no connectivity to my car stereo. Is this a common issue?

 

[lopri]

Apparently they are not! I had no idea.

https://www.quora.com/What-is-the-difference-between-3-5-mm-jack-in-mobiles-and-laptops

 

[mikeymikec]

I've compared the plug on my headphones to the plug on the kitchen speakers and they look the same (two bands, not three), so it's not a TRS/TRRS problem.

 

[mnewsham]

https://androidforums.com/threads/car-aux-input-issues.599051/


This thread seems to think it's an issue with the car.