Seeing you have the same car I would suspect the relays that get picked when you turn the key. I've have a few bad ones already. One turned the ignition/fuel circuit on and the other ran the A/C compressor. Get a wiring diagram and a meter and wait for it to break.
Or you could find the ones that do the job and replace them. Most of them cost from $8 to $12 each. I think the owners manual has a diagram of what the under dash and under hood fuse box has in the way of relays.
