Hopefully I will have some pictures and more info to post from my friend. it seems his Audi dealer is quite knowledgable and here is a bit of unique info for you all. I suspect that the firmware in the US and EU units is interchangeable, that's why I'm looking for a US and EU unit that work but look like crap or are in a condition of where no one would buy them so I can pull the chips out of them and compare the code.
I have suspected this for some time now but after he got his BT unit installed something happened that has me believing it more so than ever.
After the BT was installed his EU unit all of a sudden started showing hte legal disclaimer about operating things while the vehicle is moving and yadayadayada..... The tech had to go in and re-program the RNS-E unit itself and after doing so he was able to remove that annoying legal mumbojumbo. Now I find this very interesting - what do you guys think?
This is indeed very interesting. From what I read on the boards so far it looks like you can flash several devices with new software. The phone interface and other controllers are good examples. During the process the firmware gets reset to read x--- or something like that. In a second step the correct/updated firmware gets loaded.
I played a little with my EU RNS-E and tried to load the US software. I got it to read x--- as the software version (something which had also been reported back in March when we tried to get the US DVD to work in the EU unit) but it would not proceed to load the US software. It rebooted twice to do the update but I couldn't get anywhere from there. I'm still trying to get the EU sw 0140 to see if I can make any progress here. Maybe someone with good connections to an Audi dealer can try to get a US software update CD (no map, just the software). I would offer my assistance and try it on my EU unit before I eventually get the new EU software to reset it back to EU standards.
Regarding the compatibility I wouldn't assume that the EU and US devices are the same based on what we have seen so far. They might be but they could also be completely different. The situation with the sat receivers where the EU unit doesn't recognize the sat receiver and even the US unit has problems with the first generation sat receivers, Audi is doing some crazy stuff there.
Still, the more people report what they successful retrofit, the more interesting it will get. The RNS-E first the first piece, BT phone and mutlifunction steering wheels are probably next. And at the end we can even get the TPMS retrofitted :lol: