- Relay is under the fuse cover, doesnt matter though as you don't need to mess with it.
- Yes, everything can be removed except the relay and the electrical connection to the solenoid
- Cruise control pump
All you need to know is the diode install and that the relay and solenoid need to be electrically connected. Everything else you can do what you want with, just keep the pump disconnected. EXTREMELY simple, don't over think it.