Hey all. My X was stolen, and found the next day. The keys were in it, and the only damage obvious was smoke from them smoking and leaving butts in it, which I'm allergic to. Anyway, I pick it up from the repair shop and there is a vibration from under the driver seat. Nothing through the steering wheel. Happens in 2 or 4 wheel. Insurance is being stingy on paying for diagnosis work, much less repairing what might be found. Any ideas what I could look for myself to try and narrow it down?