Im talking about the connecting cable, say, the cable that connects the unit to the car. and the cable connects to the speakers.

Cuz Im pretty sick and tired of all the "problems" that F series has and looking at the Z3 lately. The install will be a lot easier if they're the same (meaning I just unplug the F-Series and Put in the Z, no need to cut the cables again)

Any ideas ?

(Update: They dont seems to be using the same kind of connectors. Correct me if Im wrong)

No, the wiring harness between the two is different, so you'll need to remove the F-Series harness and splice in the Z-Series.