Edit: lowered rating; App requires a subscription to work. In spite of not providing any ongoing service I am now required to pay 10 dollars a month for a function I did have as part of my purchase price. If I can get an ignition wiring diagram I'll find which signal and post. I plan on changing vehicles and avoiding Toyota from now on. Shame since I love the actual engineering. Fight anti consumerism; fight corporate greed. Fight to be a customer, not a product.