that's really weird but if you have a new battery and are still having to charge it regularly then obviously there's an underlying issue that needs investigating. These little none start up issues seem to crop up quite a bit lately. I have a JDM and have had it three years now, it has an aftermarkert alarm (as they all have to have), which is a Cobra, i've never had a problem yet though - touch wood. Hope you get it sorted. You might need to get an auto electrician or an alarm specialist to have a look at it.