Inquiry aboutShenzhen Erisin Electronics Co., Ltd.

Hi, I bought in China a preowned Mercedes R350 car with a Erisin touch pad. Unfortunately do I not know exactly the panel type but could identify it by the view of the torque meter. My Questions:     1. how can I identify the model number and how can I connect it to theOBD System of my car?     2.  Is there a possibility to add a adapter unit to use Apppe car play on it?  3.  Can be you recommend a local maintenance shop  thanks for urgent reply.  V. Meier