I would like to turn on my car's heated seats over a mobile/cellular network using my iPhone, and I'm trying to figure out the simplest path. I know very little beyond that goal, but I know that RF, ...

I just got a shiny new (used) Arcam AVR300 receiver to replace my old Pioneer receiver that is failing. What I want to do, is to be able to press one button on my remote to turn on both my TV and ...