Well, let's try to make people use it, maybe its like Field of Dreams: "If you build it, he will come."
I am using WAZE on carpc trough a screen mirror software: Mirrorop
Here is a step-by-step:
1 - Download and install the Windows receiver at http://www.mirrorop.com/
2 - Download MirrorOp Sender from googleplay
3 - embedded it on a skin and use tethering to connect your mobile to your carpc.
Well, that's it till someone find a better way...