club.liberty.asn.au

Statts wrote:

NhojM wrote:Guy's would you see any problems using a 12/240 Volt Pure Sine Wave Invertor to get around the charging/power issues?

As HyRax said, this is completely over the top. DC-DC power supply is what you want. If you want to try cheap, go with the basic 12v-5v adapter I listed before from ebay. If you want your power supply to be rock solid and give no issues, then the Mini-Box DCDC-USB is the way to go. Pretty sure I have already mentioned both of these. One is a $15 option and one is a $110 option, yet you've started looking at over-complicating things with a $190 option.....

NhojM wrote:Thanks agin for your patience with a total non tech minded person. If I use a 12v-5V adapter or Mini-Box DCDC-USB can I use the Tablet without any power(flat battery charging) issues or am I still going to need to flash the rom? As mentioned not confident flashing the ROM myself

Last question, when monting the tablet do I put a hard cover on the tablet and glue the brackets to the hard cover?

Cheers,

John

NhojM wrote:Also said my car insurance would be wiped in the event of an accident due to no hand break isolation on tablets, tried to con me into buying a $1,000 Parrot System!!

jakey wrote:just as a suggestion statts could buy it in Adelaide and then you only pay shipping once.

NhojM wrote:Statts your a champion mate, thanks so much.

Dropped into a car audio shop on the way home from work, the guy said that the Subaru Liberty GT Macintosh head units amplifier is locked and due to this I won't be able to get low, mid and high audio tones out of the cars Amplifier via the tablet!?

Not sure if any of the components previously mentioned (FSL-21) will get around this issue?

Also said my car insurance would be wiped in the event of an accident due to no hand break isolation on tablets, tried to con me into buying a $1,000 Parrot System!!

Cheers,

John

mynameisdaniel wrote:Yeah it's a very easy thing for insurance companies to pick on On my CarPC it actually locks certain features while the GPS shows the car is in motion (can be bypassed). There might be something similar for the tablets if you're worried about the legalities.

Statts wrote:Well, I know worklogs are normally done over time with updates now and then showing the progress, but as the Internet says, "Ain't nobody go time fo' dat!".

I had been thinking of putting a tablet in 2005 Liberty 3.0R-B for a while, ever since seeing some people putting carputers in an area of the dash seemingly made for it. I figured given how far the Android OS, and the apps for it had come, a tablet had to be a better option, requiring less hardware, and having more car-focused software available.

Did a little research and quickly came across [url="http://rootzwiki.com/topic/37755-timurs-kernel-usb-rom-usb-host-power-management-usb-audio/"]Timur's USB ROM[/url] OS. It's based on CyanogenMod 10.1, and the developer had been hard at work getting Nexus 7's to charge and provide USB OTG connectivity at the same time. The progress was really good so I decided to go with it. Shortly after, I found a deal on OzBargain for a price-matched Nexus 7 32gb WiFi for $204. Bang, that bargain sealed the deal.

In the 2 weeks it took for my dash parts to facilitate the install to arrive, even more advances were made on the ROM, making it possible for the Nexus 7 to deep sleep and airplane mode when not charging, and wake up and de-airplane mode when charging. That meant no need for Tasker or anything fancy, the ROM is truly incredible in what it provides for fixed installations.

I'm a bit fussy when it comes to music, so when I saw that the USB-ROM supported USB DAC's there was no other option, I grabbed a reasonable USB DAC and never looked back. A 1TB external HDD takes care of music and video storage.

Parts used:

Nexus 7 with Timur's USB-ROM
Subaru 7" AV Panel Kit
Subaru Info Panel Relocation Kit
Electric Design FSL-21 McIntosh AUX in unit
Mini-Box DCDC-USB Power Supply
USB OTG Y-Cable
Behringer USB DAC
4-port USB Hub



Anyway, pics or ban and all that, here you go...


Genuine 7" AV Panel kit, ordered from JapanParts


Info Panel relocated from where the screen now sits to where the ashtray used to sit


Required wiring including the Mini-Box DCDC-USB power supply (for a more robust power source), 12v constant lead from fuse box, acc power lead from the old cigarette lighter plug on the dash loom and the DCDC-USB's output plug with a female USB socket soldered on.


Mounting was done with a hard case for the tablet, with 90deg brackets araldite'd on. USB cable goes into air vent, then back out again behind the tablet. Holes silicone-d up to stop air leaks.


All mounted up, slightly crooked at the time of this photo, but that was squared up prior to install.




Everything pulled out of dash ready for install. Not as daunting as it looks really.


Wiring in the top area behind where the Nexus is mounted. Here is where the DCDC-USB, 4-port hub and USB DAC live.


1TB HDD now lives in this area, and the switch at the back allows me to leave the tablet powered for charging, or playing while the car is off.


Here it is all installed.

APPS:


Torque Pro


Google Maps Navigation


Google Maps


TuneIn Radio


Tablet Talk



I guess that's it for now. I've probably missed out a whole lot of details, so if there is anything you'd like to know just ask. Feel free to compliment, ask questions or tear it to shreds. I'm all ears.

pgardiye wrote:Hey Statts,

Thank you for helping out everyone with questions so far. I started installing a nexus to my liberty as well. So far I got AUX working with tablet and power connected. I'm using dc-dc USB adaptor. (http://www.ebay.com/itm/waterproof-DC-D ... 460e89a1e4). However my issue is tablet doesn't go to deep sleep as per Timur's ROM features. I can see that external power is available when I go to USB host options and also it says host is charging etc... but host mode says off. I have FI mode ticked and also tried without. Any idea mate?

Statts wrote:

pgardiye wrote:Hey Statts,

Thank you for helping out everyone with questions so far. I started installing a nexus to my liberty as well. So far I got AUX working with tablet and power connected. I'm using dc-dc USB adaptor. (http://www.ebay.com/itm/waterproof-DC-D ... 460e89a1e4). However my issue is tablet doesn't go to deep sleep as per Timur's ROM features. I can see that external power is available when I go to USB host options and also it says host is charging etc... but host mode says off. I have FI mode ticked and also tried without. Any idea mate?

G'day.

Your situation sounds familiar. Have you posted to the RootzWiki USB-ROM forum thread in the past few days? My first reaction is to point my finger at that power supply, but I won't jump to conclusions too quickly.

What release of USB-ROM are you using? And you are just using the ROM right, you didn't install the ROM and separate kernel as some have been doing?

The picture on the Ebay sale page isn't too clear, can you tell me what's happening with the USB-A Female and the Micro-USB Male? How are they wired to the power supply?

Where does your power supply get it's power from in the car?

What USB OTG Y-cable are you using?

Can you draw up a quick sketch of how your wiring is done?

pgardiye wrote:Hi Statts,

Below is how I have connected nexus 7 to my car currently. I don't have a USB hub or OTG cable. No other USB devices, just purely using nexus 7 only with the DC-DC USB charger. And have audio via 3.5mm to AUX on stereo.

Statts wrote:Hence my question as to what OTG cable you were using

Glad you sorted it out. DCDC-USB is not a definite necessity. You can try the power supply you have, and get an OTG cable that will work in-line with what you have. Straight OTG cables aren't common with Micro-F to Micro-M, so why not grab a USB OTG y-cable as that has the ends you want and will allow you to add storage or other USB accessories down the track if you so wish.