So as the title says I'm looking to put in a late model(front coding plug) cluster in my '85 eta. Ill be swapping in an m52b28 soon and feel that the 5k tach will be useless. Has anyone put a late model cluster in their early e30? I am hoping to keep my 13 button obc functional. I have tried before where most of the obc function stopped working with a late model cluster. If possible, will I need to do any re-wiring? Tried to look into it and didn't find any information regarding this. Any insight would be much appreciated. Cheers!