This means you are able able to change when action is prompted while using hardware buttons. This thread by XDA user agentdr8 features a mod that allows you to remap the buttons on your Android Auto unit. MTC-Keys Button remapping tool - by MVG-V70 This is done through an Xposed module which makes it easy to install and use. This thread by XDA user 7floor shows a mod that allows you to have a much better volume slider at the bottom of your display. Check it out to see all the new improvements made to the app. This thread by XDA user pathfinder78 has a modified version of the MTC Radio App found on many Android Auto units. These are the best places to learn about all the different hacks for Android Auto and follow different developer’s projects. Plex for Android is a video, audio, and picture streaming app that you can use to send all your multimedia content to other devices with bigger screens.XDA-Developers have a forum dedicated to discussing Android Auto and a community of people who create hacks, mods, and apps.

The good thing about this is that it gives you the chance to decide whether or not it's worth it. To be able to watch longer multimedia files, you have to unlock the full version.

It's important to note that even though Plex for Android is a free app, this version only lets you play a minute of video or audio. In addition, you can control the videos directly from the screen of the device as if it were a remote control. With Plex for Android, you can send any video from your device's 'camera roll' to your Chromecast, Android TV, Fire TV, Plex Home Theater, and even Xbox One and Playstation 4 (after prior installation of their respective official apps). Plex for Android is the official app from Plex that lets you view all your photos and videos stored on your Android device directly on your TV, desktop computer, or device with Plex installed.

Plex android auto