98 Subaru Legacy remote starter

I am trying to install an Ungo RS151 remote starter in my 98 Legacy (with factory remote lock).  The documentation for the alarm is sparse, but it has the following outputs:  accessory, starter, ignition 1, and ignition 2.  I found the following ignitions wires:  BLACK/ white +12v, BLACK/ blue acc/on, black on/crank, BLACK / YELLOW crank.  Which alarm wire goes to the on/crank ignition wire?

Where's the best place to look for a tach signal?  There is a tachometer in the dash, but I'd hate to have to take the dash apart to get to it.

Also, any wiring diagrams for the door locks, pinswitches, and dome light would be greatly appreciated.