just bought a new set of one key fits all for ignition and door locks my dad's 90 camaro. i had installed a set on my 68 with no problem. on the 90 set. i got one key which is pretty long but fits good on the ignition and turns. it is too big or wide or something for the door locks. i went to get copies made and now the copy, which is a bit smaller in length, opens the door locks with no problem but not the switch, this one is too small for the ignition. hope this makes sense, and that someone can help figure out how to make 'one' key work for all like it is suppose to before i install it.
88' BMW 735i