
8" monitor with touchscreen and av inputs, hooked up to a laptop in the glovebox.
on that PC i had a version of Multimap, I had a satnav program, I also had a 3g dongle and even at one point Digital TV. I was planning to get a night vision camera and mount it in the grill and run off the screen, but before i could do it i sold the zook.
now though, a £80 tablet would do all i need, and as i have an android phone can make it a mobile hotspot to access the web, load everything on like maps and videos, and the best bit, is that i can remove it when i am done so no one will want to nick it.
I really wish i had more space in the KJA as i would love to do a good stereo install, maybe oneday i will work something out.
with regards to your Iphone and making it a hotspot, i think that will only work direct to a mac/ipad, unless it is jail broken when it does the same thing as my android device does, be careful though as most phone companies charge extra for Tethering and you could rack up a large bill before you know it