I've owned an 2008 TB LS for the last 5 years, I only drive it from November to April in case of ice and snow. Mine does not have heated outside mirrors nor outside temp display (very annoying). Has anyone ever added these? Would the wiring be all the same and you would change just the mirror glass or even the complete mirror? With the outside temp would you just be able to plug in a sensor to an existing pigtail and replace the inside mirror? Any insight would be greatly appreciated.