Nice idea but it will be kind of diificult. I was also thinking myself that that can be acchived because we have all the information. But sending them back to the cluster is the hard part.
My Experience : VW cluster, Huifei with CanBus suppor...
There is still no way to install apk on Windows 10.
We have to wait to see if it is coming back or not.
which DPi settings are you using for the HERE map. I also have the same and planning on rooting the unit this weekend and installing XposedMTC to along with app settings to adjust the dpi for some app.
I have used 180 in AppSettings....