I found the siren plug.
I got the alarm working, mostly.
It arms. It locks. It unlocks. It unarms.
It doesnt roll windows up as advertised.
If I want it to flash the parking lights I will have to do more wire taping. Again no biggy.
I found the hood switch had been spliced to another wire all together a ugly speaker wire which I lost track of and never trid to find where it termintated in the cabin although I may have an idea (if im right it still might not work because who knows what else he did to it)
I must mount the siren still, gonna get the hardware for that tomorrow. Also gonna get and mount the 5 V LED tomorrow.
that is all.
2008 128i Jetblack