The beauty of android based hardware is the rapid development. I'd be happy to hack around and help out where I can. I'm no fullstack developer but I can hack things to work.
My biggest point was you need to keep up momentum by getting this into some people's hands. Even if those people are helping develop the product.
I think the biggest hurdle will be the HVAC control hardware interface. It's either a CANBUS hack/reverse engineer, or a hardware controller that emulates the tangible controls.
If you want some help, lets chat offline about the project. I'd love to have an in-development prototype in my car
