I’m surprised I have not seen much chatter on this mod but it seems pretty well done. He has same mod for the Vanquish and maybe the CTX   https://m.facebook.com/Sea-Ghost-101743838386442/ Not something I’d do under warranty but maybe after warranty was up?  Or buy a $200 Vanquish or used one and this kit?     I think the kits are under $300 and I think that includes the headphones?  Heck the waterproof headphones are half that price. Wish I knew Russian...