Hello everyone, I'm hoping someone here can help me out. I contacted service to ask about upgrading my 2013 P85 to the new style TPMS system that will give me individual tire pressure readouts on the speedo. Service said that they normally perform this upgrade when there are problems with the old TPMS system, but that installing the new system into an old car will NOT enable the individual pressure display. My service advisor is looking into it further and contacting the parts people for costs for all the components. Can anyone here who has performed this upgrade, and who can see the individual pressures displayed, possibly help me out with what needs to be done to make sure I get the right upgrade and am able to see the individual tire pressure readouts? It looks like this is going to cost about $500, and I have a $300 credit with Tesla and would like to use it to get this upgrade. I want to help my service advisor as much as I can, since he isn't as familiar with this upgrade as I would like.