Tablet Install Build Diary

[Dezoris]

Originally Posted by phenom86

Do you have any picture of the table in the bezel.. you have pics of the front of it, but do you have back pictures of how you secured it to the bezel? im also thinking of doing the same thing and wanted to see how you took care of securing and cabling

Dont you ever ask questions again! j/k

Actually here are some generic pictures of the general fitment. The only modification was dremmeling the bottom sill to get the tablet to seat better.
Once that happens it actually fits perfect into the bezel and the metal brackets that hold the actual head unit in place make it a secure fit.

So basically the tablet rests in the bezel, once you snap it in the dash the back of the tablet is pressed against the metal frame of the head unit bracket and the clips of the bezel hold it in place. Make sense?

[Dezoris]

Originally Posted by WolfsFang

i got the standard head unit so i dont think i cant push it back, how much was the JVC? Also how do you go from FM/AM to usb? Does the tablet have the option to do that or do you need to remove the tablet to do that?

JVC has an app for android you can switch inputs, control radio, and change songs via BT, and EQ settings, also the external mounted remote does the same thing plus volume etc.

[Korbah]

@Dezoris:

Audio quality.....I'd seen in another thread (googled car installs) that it's a bit shoddy running through a headunit aux style setup like you've done. What's your experience?

[KRAZYK]

Originally Posted by Korbah

@Dezoris:

Audio quality.....I'd seen in another thread (googled car installs) that it's a bit shoddy running through a headunit aux style setup like you've done. What's your experience?

In my experience, it is better than streaming audio via bluetooth, but not as good as CD quality or running the songs off of a USB drive. Like I mentioned to a previous post - there are installs of iPads and things like that in vehicles all the time that use digital audio processors.. pretty costly but it fixes the audio quality issue.

I'd like to see what Dezoris thinks about the quality running from the JVC.

[Dezoris]

It is extremely hard to tell true audio quality with the stock speakers. They suck, no way around it. I have found that the audio quality given the limitation of the speakers, interior noise etc has been good when you tweak the EQ settings on the head unit and tablet. I don't have any major complaints. I consider myself extremely picky and the sound quality is just good enough to live with.... Right now.

This is more of a test to see of you can actually get a tablet working for most of your day to day needs without any major tradeoffs.

Here are the specs: http://resources.jvc.com/Resources/00/01/53/15347.PDF

The thing is, this build is about trying to put something together for under $500.
If you want audiophile quality sound, it's going to put you over $1200, with something like Audison, amps, and Speakers.

And I may get to that point, or at least start with speakers and MAYBE a small sub.

[phenom86]

Originally Posted by Dezoris

Dont you ever ask questions again! j/k

Actually here are some generic pictures of the general fitment. The only modification was dremmeling the bottom sill to get the tablet to seat better.
Once that happens it actually fits perfect into the bezel and the metal brackets that hold the actual head unit in place make it a secure fit.

So basically the tablet rests in the bezel, once you snap it in the dash the back of the tablet is pressed against the metal frame of the head unit bracket and the clips of the bezel hold it in place. Make sense?

Thats bro, you da man!! thats exactly what i needed... your inspired me to do the same thing.. i've been wanting to do this or a "car-puter" set up

[Dezoris]

Originally Posted by phenom86

Thats bro, you da man!! thats exactly what i needed... your inspired me to do the same thing.. i've been wanting to do this or a "car-puter" set up

Here is another shot of the back.

[phenom86]

Thanks bro, ill be searching on line for a rom that i can use on the Nexus thats close to yours

[Korbah]

@Dezoris - seems to be a clean install. Is it nicely fixed against the Bezel with a robust safe fit?

It's hardly surprising BT streaming is poor - the codec is very lossy and nothing out there supports the lossless new codec apt-x which would ameliorate much of the quality issues.

With regards to the stock speakers - whilst the general consensus on these forums are that they are indeed poor, it's also thought that the mid-bass 6.5" driver in particular dramatically improves once you deaden and seal the open door ports. Have you tried this?

I'm also a bit leery of using a audio processor. Fundamentally you're trying to improve the SQ on a audio stream that's been converted from digital to analogue poorly, amplified with headphone amp, passed through the headunit (with further amplification probably) and then hitting an audio processor that needs to magically improve this pathway. Plus $$$$'s

There's been progress on enabling USB audio -> DAC output (http://rootzwiki.com/topic/34051-gui...c-and-nexus-7/).

There's also some progress on charging the nexus AND using USB OTG Devices (http://rootzwiki.com/topic/30615-can...20#entry927176)

I am unsure if you can as yet charge AND use a DAC concurrently but progress none the less.

Another option is to remove the tablet's back, remove the battery and hard wire it onto the car wiring. Advantages are you avoid the issues of charging over USB and battery heat (http://rootzwiki.com/topic/31144-usb...10#entry951614)

[FSUnoles]

^ so there is progress. It would seem a root and battery alter would get this audio and battery issue sorted out

[phenom86]

Originally Posted by Dezoris

Here is another shot of the back.

in the last picture before this (blurry one) did you actually go through the plastic cuz its pretty thin once you start using the dremel

[Korbah]

Originally Posted by FSUnoles

^ so there is progress. It would seem a root and battery alter would get this audio and battery issue sorted out

Almost. There are 2 issues though:

1. Full reboot every time you turn off (i think) as there's no standby power from battery
2. The audio rom is still buggy when you do usb out........you lose mic in functionality which is a pain if you want to eg. use nav search with voice recognition

Close but not ideal yet. I still think USB audio w/ concurrent charge is the way to go. I'm unsure as to whether then running it through a headunit is the way to go or not though.

[FSUnoles]

Originally Posted by Korbah

Almost. There are 2 issues though:

1. Full reboot every time you turn off (i think) as there's no standby power from battery
2. The audio rom is still buggy when you do usb out........you lose mic in functionality which is a pain if you want to eg. use nav search with voice recognition

Close but not ideal yet. I still think USB audio w/ concurrent charge is the way to go. I'm unsure as to whether then running it through a headunit is the way to go or not though.

Ideally in the future head units usb will be able to handle audio out of tablets. Just as they charge and play audio off the iphone (boy are those people screwed now)

Sent from my HTC Glacier using Tapatalk 2

[benzil]

@Dezoris - Awesome work so far. Very impressed with the UI work done. i have no background/ experience in software development but was wondering if it is possible to pair an android phone with the tablet so messages or caller ID would pop up on the screen. something like the XBMC remote.