My 93 325i just started this week to not crank. The battery is completely drained so I changed the battery and the issue is still occurring! My friend who's a mechanic has disconnected my trunk light, interior lights, and my alarm thinking that they are staying on and draining my battery. But it is still not cranking. It won't even turn on. It has to be jump started every single time I crank it if it has been more than a few hours. PLEASE HELP!!