Ok, so I read all the information at the sidewinder website and I'm still not sure what I need. I have 2 keys both the flip up versions. One works perfectly and the other unlocks the door, trunk and everything except for turning the engine one. The guy I bought it from said the dealer told him the chip was bad in one. Does that mean I have to get 2 new keys for them to work, or can I reprogram the one or what? It's a 2000 GLS 1.8T. Any help is awesome.