I understand that Tubulus has now addressed the issue of the red light on the DS MK2 by connecting pin number 19, which was not used in the original design. So a recent cable (last few months?) should be OK.
If you are ordering a new one, you can ask them to modify the connector to fit the large screw heads on PS Audio gear. But not everyone likes the look of this.
If you want to change the screws, it’s easy. You need wafer head screws; see this post for the right size.