the one that sleepwalker posted up is the exact same one i bought. since the p5 doesn't use a chip in the keys, no programming is required. Just pull out the internals from your fob, cut off the panic button pop-up and get the key cut. Havent had a problem, and ive been using this for 3 months now. I got my key cut at toyota (because mazda's machine was out of service that day) for $7. If you want the switchblade then get this.