Kaval - recommend a search on this subject in this forum. There has been a few posts recently from SRT owners with apparently dead batteries as you may very well have if not a cable as Dave points out. These guys chnaged their batteries out only to have them go dead again within days. They traced it to their Body Control Module (BCM) as being faulty and subsequently draining the battery. I have no idea where that is, what it looks like, or what function it serves. One of them may chime in, or you can call Tator or Woodhouse and they can probably point you to it.