I simply added the extension ring to the battery tube of the Bolt - put in the 18500 battery - put the kick on top - screwed on the top. Works like a champ. It is easier the first time to add the Kick onto the top of the extension (harder to push up thru the bottom past the threading of the extension). To change batteries, I screw off just the bottom and leave the Kick in place. No wiring modification was needed. Works great.
I have heard some re-wire the button, but so far it is fine on mine. I imagine a stronger/thicker wire is always better...but for now it seems to be fine. The Kick does NOT need the re-wiring in order to work on the Bolt unless you have paint inside the tube that keeps the spring from making contact. If you do have spray inside the tube, you can scrape or sand the paint off inside the tube to make the contact.