RC... Have you considered waiting until summer to see what the CarPlay or AndroidAuto compatible headunits are going to be like? I'm actually waiting for that instead. I think those are going to blow the Raxiom setup out of the water for around the same price.
I would love to have CarPlay in my car! But I just don't see them making a kit for our vehicles. Do you have anymore info on it besides the links you posted?