96 accord lx/ addon remote start

96 accord lx- impulse RES (add on remote start)

ok i have been lookin thru addon remote start on this forum. yall said that after the remote start, your keyless remote doesnt work anymore. but this accord has an factory alarm module, and my question is that can you bypass come kind of wire  to let the brain know that the car has not start.

one more thing, this addon have an "optional (-) coil tach input. do not connect unless the remote start fails to retry if the first crank attempt fails. connects to the (-) of the coil. keep away from high voltage wires. if used, set sw5 to 'off' "

i thought that the tach wire are usually positive. and how come this unit doesnt have tach learn like DEI product does?

the lock/unlock wire are seem to be grounded already, when i test my DMM with my black probe to that wire it shows power without pressing lock or unlock. but then when i press the lock/unlock the power jumps up couple of volts. but i remember it start out on other cars with 0.00v and then jumps up to 12volts when pressing lock/unlock. why is this?

the RS unit have two initiate wire one pos other one is neg. i used the neg since the lock are neg polarity. when i test it with the remote, it doesnt work. it worked when i tested with manually grounding it. what is my problem here? or you have to hook up the initiate wire some other ways with a relay or something?