But what if even the humble aux port isn’t an option? Many older cars lack this connection and, without Bluetooth and USB, they offer no factory-fitted way to connect to a smartphone.

Thus, we’re going to look at how to modify your existing stock car stereo to accept an auxiliary cable input or even a Bluetooth module. This way, you can pump in the latest tunes from your ...

You can already buy the AirFly Duo (you guessed it: two connections at once) or AirFly Pro (adds ability to stream from your phone to an AUX in ... a button to connect a nearby Bluetooth device.