I have a '99 LC with 292k miles that I just got back on the road. The main key was molded to a black fob with 3 buttons, lock, unlock and panic. Of course the fob has broken off the key. I have the fob attached to a spare key because the rig will not start without the fob. The fob is in poor condition and, using Murphy's Law, will fail at the most inopportune time. I want to buy two new fobs so I have an extra one when I can't find my keys. The tag that identifies the key set is long gone. What do I have to do to make sure I get the right fobs.