1990 nissan 300zx, compustar sw8000fmr

Ive almost completed my alarm install but have a few questions.

1) Does anyone know what the dome light wire is from the factory? Or the best way to find it, ive tried for a while!

2) I have an aftermarket turbo timer which hooks in the middle of the wiring connecting to the ignition switch.  I cannot arm my alarm with the turbo timer running.  My 2way remote tells me its locked but does not actually activate as all my led and systems are not active.  There is a key sense wire from the brain but I have no key sensing switch on my car.  Ideas?

3) I want to install a glass break sensor, tilt sensor and proximity sensor, I've heard all the DEI products are good?  Easy to integrate into my compustar alarm?  The 2stage shock sensor seems close to useless even at the maxium setting, only my doors slamming sets it off. 

I don't want to use the included turbo timer, I do not have remote start hooked up.  Can I use the keysense wire and ground it and then the brain will allow me to lock it with the engine running? 

My door actuator seems to not open the locks 100% when it's cold out, after the car warms up they work flawless, ideas??