3.5 mm line out

[caver_tim]

Brand new Xperia E

So i can plug in a variety of earphones and the sound comes out of the headphones, even a mono one with a mono 3.5mm jack

BUT

when i plug in a 3.5mm stereo jack to plug my phone into my car, the audio continues to come out of the phone's speaker

[chip_shorter]

Is that a 33 Ohm resistor for both?