[Nexus 7 (2013) General] faruqster:
Hey everyone, so I finally finished up the project.

The home page:

The music page:

The page with the speedometer and RPM:

To do this, I found a high resolution photo of the dash and I cropped it until the widgets fit nicely into where the gauges would fit. Check this out to see it in action.

[YOUTUBE]s95coLt3y5I[/YOUTUBE]

I am using auxiliary for audio, and I originally wanted to simply plug a micro USB cable in for power. However, the cavity where the tablet would sit has a particular shape that was not conducive to doing this. There happened to be room where the auxiliary cable plugged in, but there was no room where the micro USB port was. This is shown here:

The red arrow shows where the auxiliary cable has room to go. The yellow arrow points to where the micro USB cable would go. As you can see, there is no room or slot for this to go into, which made that idea impossible without modification of the stock trim. This is better demonstrated here:

Instead, I decided to use a wireless charger to run power to the tablet. As you can see in the next picture, it is secured to the tablet using one of the elastic bands I attached to the frame earlier. I also put velcro on the charger as well as the underside of the elastic to give it a better hold.

I sent the micro USB cable from the wireless charger down using a coat hanger. I had to remove the shift boot and trim and remove the two torx screws holding the ashtray in place. Once I got the ashtray out of the way, I could route the cable down underneath the HVAC unit, shown here:

I also cut some suede cloth and put it in front of the cavity so when the tablet is out of the car, it doesn't look too awful. I just quickly cut a piece, so I will more exactly cut one that will look better.

As far as how the tablet and bezel are being held in place, this is where the magnets I mentioned in the beginning come into play. As you can see from the earlier posts, I attached magnets along the back of the bezel. I then cut small pieces of metal and attached them to where the magnets on the bezel would make contact. I plasti-dipped the metal pieces so they would be less noticeable.

The black metal pieces are seen in each of the 4 corners in this pictures. This is what the cloth is hiding:

When all is said and done, the magnets stick the tablet in place and it stays secure. If I gently tilt the bezel up or down, the magnets disengage and I can take the bezel/tablet assembly out in a matter of seconds.

I am using the ELM327 Bluetooth OBDII module to use with the Torque app, seen here:

I routed the bluetooth microphone using a coat hanger and mounted it right behind the steering wheel. The audio is so much better for the other person than it was with the stock bluetooth.

As far as functionality goes, there is so much more that can be done with a tablet than the RCD-510. Google Maps is great to use. I tether internet from my phone to do so. I use the app Open Mic on my phone, which allows me to merely say "Let's go", and then it uses the app Tasker to turn on bluetooth and turn on wifi tethering.

When I turn the car off (which cuts power to the wireless charger), Tasker runs a task called VW Off that I set up. It basically flashes "thank you for choosing volkswagen :)", turns off bluetooth, pauses the music, and turns the screen timeout to 7 seconds.

When I turn the car on and thus give power to the wireless charger, it runs the task VW On, which flashes "welcome back sami :)", turns on bluetooth, automatically starts the GPS location finding service, and unpauses the music.

Overall, I am very happy with all of the new functionality present in the car with the tablet. I am relatively pleased with how the plastic matches, although if I could have the exact paint used for the VW plastic, that would be great. Other than that though, I am happy, and I would recommend anyone trying this to give the magnets a shot. It makes installation and removal a 5 second process.