The Kindle Fire has almost the exact dimensions of the double din in a Volvo S70, (98-2000) as far as i know....
I simply create a hotspot on my android GsII or a mobile hotspot device and have the Kindle Fire connect to that, that being said it has GPS (through Hotspot) and internet.
Kindle Runs to my audio input and thus awesomeness.
Over all the project was around $230
I did very slight dremeling to dash, all looks oem.
Please let me know if you would like more pictures and please leave comments