Use Android Auto on the DMD-865 device

Please don’t confuse this request with the other Android Auto request.

Current situation:

I have the DMD-865 mounted on my motorcycle.
I have my phone in my jacket pocket.

If a phone call comes in, I don’t see who is calling.
Also, I can’t initiate a new phone call on the DMD-865.
Also, I can’t use the apps on my phone.

Request:

There is an app, that can make any android tablet a android auto headunit.
https://www.b3itlabs.com/prod.php?id=1

It would be nice, if DMD could introduce this feature natively.
I could leave my phone in my pocket and still use it through the tablet.

I would be willing to pay extra for this feature.