Hi, I'd like a little help please, troubleshooting an electrical problem.

1.Whenever the ignition is on the running lights are on without being selected.
2. If the headlights are on and the brake pedal pressed when coming to stop, selecting the ignition off does not stop the engine.
3. Pressing the brake pedal at any time will bring on lights in the dash and the running lights.
4. Cruise control suddenly failed and will not engage.

Something is live somewhere, but what and how do I get to it? I couldn't identify any blown fuses.

Thanks in advance for any advice.