I have an issue with my Tpms error message after a tire shop install an after market sensor on one of my tires(they broke the sensor). Now the display zeroes on all of the tires and the message display SYSTEM ERRORS. I think I would like to purchase a new set of 4 sensors since them have not been replace since I purchased the car new. Anyone know a a reliable place to buy a OEM sensors beside the stealers? I read an earlier discussion there is a member with user name, Princelybug, mentioned that he bought an OEM set of four for $100 Any suggestion will be greatly appreciated.