I have a 2014 GT500 and I just ordered a complete set of new tires. The stock TPMS sensors work fine, but they are now 7 years old and I'm guessing they are approaching the end of their battery life. Would you buy a new set and have them put in while the tires are off, or just leave them alone? If you think I should buy a new set, would you get them online and have a tire shop install them, or buy them directly from the tire shop? Just looking for some opinions.