I would like to fix the flip out part of my key. Do I need to get a new end cut and programmed or can I purchase a new end and take it apart to put my already cut key in there? Where is the "chip" part of the key? And if I have to purchase a new end and have it cut, can I program the new cut end with my old cut key by turning to current key and then removing it and turning the new key? I currently only have one key.