Thanks for the comment. As I mentioned, I had the kindle fire sitting around that was given to me as a gift. Its not a bad piece of hardware, but it wouldn't be my first choice for a few reasons... No GPS. No bluetooth. No camera. These days you can get nicer tablets. However, I've found a workaround for the gps. I can share my phone's gps location with my tablet over wifi. I've also got 4g tethering going now so the tablet can get internet wherever I have cell service.
Cyanogen Mod is just a version of Jelly Bean. The rom I used was specifically designed for the Kindle Fire. More info can be found here.
TWRP is a boot manager. It is the tool you first install to be able to load various different roms. It can be found here.
If you really do decide to go the kindle route, I'd advise against it, pm me before you start flashing it and I'll be happy to help you with any details.
I've got the kindle in a nice military grade enclosure now and mounted to the drivers sun visor. I need to special order some 90 degree cables then I'll hardwire USB and audio to the device.
Keep in mind, this isn't my final PC install, just something to get me by in the meantime while I work on (and work to pay for) other projects. The idea is the tablet will extend the computer's I/O by providing another touchscreen and display device. I'll also probably keep using it for playing music since it boots instantly and doesn't require a lot of power to run for times when I leave the radio on but the truck off (which is often.)
I'd like to keep the tablet removable though, for times I want to take it inside somewhere. Right now I have it attached with elastic, but I may build a dock of some sort in the visor in the future, if I decide to stick with that placement.