I am hearing a high pace clicking sound in the engine compartment when just the accesories are on. It only happens about every five minutes, and only lasts for about five seconds. Also, I think the sound is either the battery, or very near it. I've searched for other threads, but see nothing. Is this normal?

03 Evolution - ~2000 miles

 

Accessories? Do you mean AC? If you do, then I have a similar problem.

If I drive my car for about 20-30 minutes with the AC on, my car starts rattling, and it sounds like it's coming from near the driver's side wheel well/undertray (not from inside engine bay). I haven't really looked into it but it only occurs after I'm driving for awhile and the AC has been on. It doesn't occur when the AC is off, and I have no freakin' clue what the hell it is...

I have ~9000 miles..

 

No, not the AC, just the accesories...i.e. turning the key on but not starting the ignition. I don't use the AC much where I'm at, so I don't know about your rattling.

 

It's probably just a relay clicking. I wouldn't worry about it. Same stuff happens in driver's footwell when you hit the IC spray "manual" button