How to change wiring between ear cups?

Hi all,

I think the wiring between the two ear cups has broken on my E45BT headphones.

It charges and turns on in a certain position. Managed to take it apart and measured the the wires for connectivity and the only one that failed is a thick copper wire.

Is there a way to take out the wire and replace it without breaking the whole thing?

Kind regards,

Levi