First of all, this is an awesome system and I love it. Reasons I'm selling:
1) I really need the money
2) Because Racecar
3) Full disclosure: the charging cannot keep up with super heavy battery usage (stream music, screen on, and GPS navigation for example) and you get about 5 hours of "heavy" use before you need to switch stuff off and let it recharge a bit. It may just be an issue with my wiring..not sure For just audio streaming, it works great.
PICTURES OF THE INSTALLED PRODUCT AND FULL WRITE UP HERE: Entertainment Upgrade | m-lev.com
In essence, what you're purchasing is a PnP, drop-in dash install for a Miata. This is 100% workable in any other car, the nexus 7 fits PERFECTLY in a double-din slot.
If you're installing it in a Miata, this will be 100% pnp. I have already cut everything to size, I have already spliced all the wires, I have already flashed USB ROM to the tablet, I have already paired the amp and speakers, I have already figured everything out. It just needs to be installed.
If you're buying this for an NA, everything will be perfect except the speakers are 8".
The ROM that the tablet runs is based on CM, and is called "USB ROM". Basically, it is designed to do this. It goes into "deep sleep" when you turn the car off (automatically) so the battery can last for weeks with the car parked, and it automatically wakes up when power is returned. It has extra media control buttons built into the notification bar for ease of operation. Etc. etc. if you have questions about it, google "Nexus 7 USB ROM".
I'll even swap my radio surround for yours, as mine is already trimmed and dremmeled to make room for the y cable, and so the tablet fits well.
What you'll get:
These are cut to size, and have a hole cut in the bottom for bass response/wire access--but the hole in the bottom does not allow water in cuz.. its on the bottom.
This is needed to allow higher quality audio, and to bypass the headphone jack on the tablet--which reduced static noise.
this gets powered by the car, and then in turn it powers everything else. Allows for charging of cell phones/ipods etc on the go. Also allows you to play audio/video off of USB drives etc. from the tablet.
Other goodies: USB OTG cable with Y cable for external power, 12v step down to 5v3A (powers the usb hub) crystal clear shield hard case for nexus 7 (provides protection, but mostly just to have the tablet fit snugly into dash) total price for all of these roughly $20 shipped from Amazon.
Possibly willing to part out based on interest.