I have A 94 BMW 325I convertible. For the past week I keep having to jump start the car to get it going in the morining and sometimes in the afternoon. I tried changing the battery with another one from a rebuilt battery shop to see if that helped. It didn't I asked around and several people say that it seems to be a common problem with some BMW's that there is a short under the dash. Is this true. Is this something that can cause my battery to discharge?