Bluetooth Car Mode Starter

来 Google Play 网购吧！购买内容之后，立刻就可以在您的 Android 手机或平板电脑上享用，摆脱一切同步烦恼。

Bluetooth Car Mode Starter is a simple application that allows you to start car mode when your device is connected to a Bluetooth device. Similarly, car mode is disabled when that device disconnects.

Why is this different from other automation applications?

Bluetooth Car Mode Starter ensures that no duplicate toggles are made, this means that if you have an application that detects car mode and does stuff upon that, it will only detect car mode once.

Plus, it's open source.

This application doesn't do anything on Android 4.2, am I missing something?

No, Google removed a huge part of Car Mode in Android 4.2, luckily, workarounds exist for rooted users:

Install Xposed Framework and this http://forum.xda-developers.com/showthread.php?t=2361166