Samson SR850 detatchable cable mod

I like these headphones a lot. They are comfortable all day and have great sound for the price they are at. The issue I had with it was that my cable was broken at the source. My cable was at the end of its life and so the headphones were thrown in the cabinet to be forgotten about, until I created a fix for them.

Since I am learning 3d design and cad I decided to make my own part. There is one other part on here that I tried making (https://www.thingiverse.com/thing:4927763) but I didn't like how it protruded too much. I tried to copy the original cover and added an extension where the audio jack fits in. The audio jack I used is a PJ-392 (The round ring version).

!!!This mod will require you to take away material off the headphone housing!!!

Instructions:
Use a knife to take off the cap. Desolder the wire if it is still connected.
First test fit everything and fit it. Use a white marker to mark the outline of the jack. Dremel or grind a hole for the audio jack to pass th