Turn it your Tablet (Asus - Nexus 7 2012) into the best Stereo out there ever seen.

Note: This tutorial is based on a Toyota Corolla, but may be applied to another car, just need to adapt the requirements and installation process.

See the final results here:

Part 1

Part 2

Sorry for missing steps, see the video for final results.

Step 1: Requirements

Here the toys required:

Easycap USB 2.0 TV Video VHS to DVD HDD Converter Capture Card Adapter (optional, also need The App)

Micro Usb HUB Adaptor with Power, Kirin Charging OTG Host Cable Cord Adapter for Android

Black Double din car radio Installation package for replacing a standard radio in a Toyota Corolla 2009 2010 2011 2012 2013

Esky EC135-05 Waterproof High Definition Color Wide Viewing Angle License Plate Car Rear

Arducam Nano V3.0 Atmega328p Ft232rl FTDI Micro Controller Module Development Board 5V-12V 16MHz 328 Compatible with Arduino (note you can use other modules based on Arduino)

Car Charger, Maxboost 4.8A/24W 2 USB Smart Port Car Charger

USB ROOM for Nexus 7

Clarion EQS755 Car Equalizer (and cables)

Any Car Audio Amplifier, speakers ...

Arduino Code available in Github (Don't forget to Start the project ;):

Step 2: Setting the Tablet Part 1

First of all, we need:

The tablet it self

An Arduino (ATmega: Nano or UNO)

Step 3: Identifying the Power Steering Cables

In this case, we need to know the cables to control our tablet through the Arduino. I install it in my Toyota Corolla 2010 type-s, but it does not matter the car model, all major cars has this three cables to control the stereo based on resistance