A company installed a new stereo, amp and speakers in my cruiser and now my cruiser is dead within a day or two. I took it back several times and they blamed it on everything else but the stereo (of course). I took it to a Landcruiser business a couple times and they said they fixed it only to find that a day or two later it was dead again. Every time I drop it off with them its gone for at least 6-12 months so I'd like to not go that route again. I stopped in at a local oil change place and they said, "you've got a battery draw even when the cruiser is off and key is out". Can someone give me some things to try so that I can track this issue down and fix it? I'm not very good with electrical or mechanical stuff but I dont know what else to do. Thanks in advance.