It's getting difficult to get tires mounted without TPMS sensors if they were stock with the car. Liability and all that crap. I mounted snow tires for our Camry and didn't put them in. One thing to be aware of with cheap ebay sensors: some of them are old, and that's why they're cheap. The batteries in them last 8-10 years. So you need to get sensors that are fresh, or you may wind up replacing them much sooner that you thought. Batteries are not replaceable. BTW, they have a manufacture date on them.