From what I understand there may be multiple relays that can fail and lead to battery draining. They fail and in-turn keep accessories turned on and drain the battery. The Aux fan relay and anything related to the audio system could be causing the drain. Do you hear anything running when it should not be? I'd first make certain that it's not your battery and have the battery properly load tested. Any local parts store can perform this service, although it is a pain in tear to get the battery. I know you just replaced the battery but maybe it's defective. Maybe try turning off all your accessory lights as a precautionary measure until you find the root cause. Hold the middle map light switch for 3 seconds and this will disable all accessory lighting. Electrical gremlins are no fun, please keep us posted on your results as I'm sure my post will not be the the most informative.

Best of luck.

K