Use the search function at the top of this page, most if not all of these issues have been addressed in the past. In my opinion the battery drain is probably the alarm siren under the cowl in front of the windshield. The only way to narrow it down for sure is to pull the fuses and with an ammeter see when the voltage drops or spikes. Do you have an owner's manual, there are fuses in several areas. I will attach a link to manuals and lots of info.