Strap button removal for K&K pickup install

[Beezerley]

I want to install a K&K pure mini pickup on my D-03R, bought in about 2005 (I think). Can't figure out how to remove the strap button, which is replaced by the jack socket. See pics below. It looks like I probably need to unscrew it from the inside, but no idea what tool to use? Any ideas anybody?

[jpmist]

Am sure brighter minds than mine will weigh in shortly, but pretty sure I just used pliers, specifically the "slipjoint" type to simply grab the outer ring and twist counterclockwise. (The slipjoint type will get a better grip that won't slip.) Obviously there's potential for maring the finish here so go slow. A quarter turn here should get it loose enough to finish removal with just your fingers.

The hex nut size I dunno, perhaps someone here will, but I'm thinking that's more for tightening, I don't recall needing one when I removed mine.

Installation seems scary using quickset superglue but it's doable. The instructions K&K provides is pretty thorough so just take your time. My opinion is that precise placement of the pads isn't all that critical plus/minus 5mm or so - it's basically gonna sound the same if you're a tad off from perfect. Best of luck with it!

[mike in lytle]

The stock endpin assembly is shown in the pic.
The tygon (plastic) tubing is a sleeve on the T-nut and provides a slight friction fit inside the hole.
The T-nut points are not hammered into the wood, they barely grab the wood and keep the T-nut from rotating.
Loosen the end pin with a 3/16 hex, unscrew and remove.
Push the T-nut with the tygon sleeve from the outside of the guitar until it falls free into the body of the guitar. It takes no effort at all. Use anything, a pencil, screwdriver, dowel, whatever.
Mike

[Beezerley]

Many thanks! I was using hex keys that were way too small easy once I'd got the right size.

The installation went fine and I think it sounds pretty decent!