[Hamuko]

Life is just so simple with a simple headphone jack.

Say you get a loaner car and you want to listen to music from your phone. You can either connect a 3.5 mm to 3.5 mm cable between your phone and the car and start playback, or you can go into the car settings, start bluetooth pairing, wait for the device to be found, pair the devices, make sure that your address book is not shared via Bluetooth and stored in the car's memory and then start playback (and probably remove the pairing from both ends at the end of it all).

[nexuist]

This experience sucks because the car sucks, not the phone. I have a $15 Bluetooth to FM transmitter that you just need to select on your phone's Bluetooth page to start playback (assuming you haven't paired before). No passcode or complicated process. Is this worth not having a cable? I'd say so, actually.

[Hamuko]

Wait, you can pair with the transmitter with no authentication? That sounds real bad.

[nexuist]

If someone is already paired to it then it won't let you pair so it's not really that bad. The worst that can happen is someone plays some stupid audio for the two seconds it takes me to lower the volume or pull the unit out of the power port.