That's awesome. Gonna give that a try soon. I'm running fine every day with the two board system.
Since this thread is almost a year and a half old and discusses many implementations I figured it might be a good idea to have a thread just for the Pi solution. I started one here
Looking to get CarPlay on your Tesla. This solution is the best I've found so far. The developer just released a simplified version that only requires one Raspberry Pi computer. It's not a finished plug and play product. You need to get your hands dirty a little bit. But, it works great...
teslamotorsclub.com