Installation manuals
There is no installation manual to plug-and-play version of comfort indicators due to simplity. Usually the flasher relay location is close to steering wheel under the dashboard, in example in the fuse box. If you don't feel good with installation, any car service will do it for you in a blink of an eye. The best way to locate flasher is to hear where relay-clicking sound comes from or to use ToyoDIY.com where pictures are. Here is an example from Yaris II where relay is just below the steering wheel.

Installation Solo Module or Aygo edition is little bit more complicated. Here are PDF files with step-by-step manual.

