I have, but not on a tC. Personally, I would suggest the regular neons over the LEDs. From my experience the LED kits just don't glow enough. Sure the pattens look cool.. but they barely show up... even in very dark places. Installing them can be easy... or it can be a huge pain. I just depends on placement. If you don't know how, or if you have limited knowledge of electrical things... i'd try to find a shop to install them for you. Good luck though.