How do I exchange MacBok displays with different cables & connectors?

To my dismay I had to realize that a display from my 30 month old MacBook does not fit into my 41 month old one and vice versa.

On the picture below one can see the three antenna cables (black, blue, and grey) and the connector which is being slided into its socket from the side. This is the 41 month old device, 1.83 GHz:

This image here shows only the cables black and grey and a connector which is pushed into its socket from above. That is from the 30 month old device, 2.2 GHz:

With such a constellation I am quite at a loss what to do.

Thank you.