Power plug for Carrera Wireless charger

I was annoyed by the fact that in order to charge the wireless controllers, the track needs to be powered on.
Since I was not feeling like modding the charging bay itself (there are plenty tutorials for this way), I just created a simple adapter to attach an old Laptop power supply (18V).

This is kind of a quick and dirty solution, as it lacks a strain relief for the cable, but since I won't be moving this thing around, I considered it to be sufficient for now.

Please be feel to to modify