wiring diagram for a 96 galant

I am planning to install a remote start/keyless entry system RS900ER. Any body could tell me where can I find the wiring diagram and any helpfull hints will be appreciaed. Do you realy need to hook the TACK wire or not. thanks

Here's the link for the wiring you'll need:  1995-96 Mitsubishi Galant Alarm Information

Yes, I recommend using the tach wire.  I'm not sure about your car, but sometimes you can find it under the dash, rather than going through the firewall to the distributor.  Just makes things easier in my opinion.  I installed 2 remote starters with using the tach wire, and I wound up going back in, and hooking up the tach wire.