What are you going to install into your Mercedes B-Class (3rd Gen) W247
(we need this information to establish the correct parts needed)?

The third generation B-Class was launched on 2 October 2018.

Three infotainment system options is available, with entry-level models getting dual seven-inch displays. A seven-inch display with the larger 10.25-inch display is available, with top-tier models getting a pair of the large displays. It is powered by a full MBUX infotainment system, giving B-Class buyers access to its functions through a standard touchscreen.