I have an '84 318i and the original cluster got lost, so I had to buy a replacement, from a 91 iX. I read a bit about coding plugs and such, found out about earlier pins in the back, the plastic plugs in the front on the newer ones. So anyway, I realize there isn't an actual plastic coding plug for the M10, but I was told that the plug from an M42 or S14 cluster would work fine. Is this right? Or do I need to search for a mint 318i cluster?