TOM'S L.T.S Throttle Controller I had this installed on a friend's 30 Prius. There are no instructions, but you can find them online. Installation is easy and plug-and-play. Connect the red wire to the ACC power supply. Connect the black wire to ground. Simply insert the controller's coupler into the accelerator coupler. The pink wire connects to the reverse light. It will work even if you don't connect it, but we recommend connecting it for safety. Thank you for viewing.