07 civic si where to find arm/disarm

Yes otherwise you won't be able to R/S the car. It has to know the gearbox was in neutral.

Did you test the UnLock wire with a DMM?  It might only show the correct response ( (-) pulse ) by turning the key to unlock in the drivers door lock cylinder.  Once you locate and verify the UnLock wire, you can do an additional test by using a short jumper wire, one side connected to chassis ground and touching the other end to the UnLock wire briefly.Soldering is fun!

Also throw over the lock catch on the driver's door and remove key from ignition some cars especially Japanese wont let you access the lock side unless latch is thrown (= shut door) or key in ignition. Kreg, please resend me your last PM ref UK origins, I've lost it!

how to program the second 1way remote?

Rear of owner's manual

tnx guys!

how to program reservation mode to not lock after exiting the door? I have look thru the manual and can't find it. tnx guys

You can't.

As Howard points out, the car must lock ( and doors stay closed ) while in reservation mode.   For safety purposes, the remote start wants to know that the car was idling ( in neutral ) when exited & locked and never re-entered prior to the next remote start.  On the newer CM5x00 and CM6x00 units, you can program it to lock ten seconds after the last door is closed.Soldering is fun!

car won't remote start after unlocking it after exiting from reservation mode. what seems the problem here? (ex. I will exit the car from reservation mode and then ops I forgot to get something and unlock it again get the things and lock it again then it won't r/s). help please, is this how the way it works,?