Help with tach wiring

[B3M2W5]

Ok can any body help me with how to hook up my tach on my 87 325e every thing else works except that now.....
any help been searching but cant find it ????

[Beej '86 325es]

Ok can any body help me with how to hook up my tach on my 87 325e every thing else works except that now.....
any help been searching but cant find it ????

Everything should hook up the same as the old eta cluster. Which part are you stuck on?

[EtaSport]

The tach wire is in the c104 connector. Did you make sure to find that?

[B3M2W5]

Yah i found that wire the little black on a regtagular plug but i dont know what to hook it to on my C101 I tried one wire but it didnt work.... Im not sure which one to hook it too.