2003 m3 convertible is having a instrument cluster problem. Car sat for about 3 months turned it on and cluster was completely dead besides airbag,convertible light, and abs. Car starts no problem and drives fine. With all fuses in place radio powers on and off repeatedly and so does middle overhead light above review mirror in sync. With fuse 34 unplugged turn signals make sound but no illumination on cluster,radio functions, and abs light on cluster no longer shows up. Have tried pulling the cluster out along with battery and letting car sit for a week. Pulling fuse 43 and letting car sit or a few days. Not sure if cluster needs rebuilding or maybe has a bad ground. Nothing so far has worked any help would be appreciated.