Hey, got an electrical question...
Behind our glovebox is a fusebox and other 'lectrical thingies... From that location there is a clicking sound such as a relay or switch being turned on and off. It does coincide with a very minimal change in "something" in the engine compartment... It has maybe 4 - 5 second intervals, and seems to be engaging and disengaging??? (maybe a fan clutch/cooling system item??? ) The corresponding noise on my watercooled motorcycle is a fan... But it shouldn't be constantly going on/off... my engine temps are just fine, never even breaks a sweat. This only happens on my '03, never hear it on my '00.