harada hcs 774 wiring diagram

I recently Purchased a 2001 Kia Optima and it has a Harada Remote start installed. I can't find the wiring diagram anywhere for this remote start. Its not listed on the back of the unit like some systems. I am looking to sell the old unit when I upgrade to a 2 way with alarm. I am hoping to avoid Ringing out the harness (testing each wire while its installed in the car). Any help would be appreciated.

Testing is the obvious way, 2 or more perm lives, outputs to igns, start and acc, ground,  tach and possibly door contacts maybe a siren output and some type of transponder by-pass possibly.

I have the vehicle wiring already so I basically know what wires go where. Just not anything for a bypass since this vehicle doesn't have transponder.

OK so it should be quite easy but you're going to have to do it the hard way, I haven't seen Harada product in years, they used to make auto aerials back in the 70s and 80s although Nippon Denso and Nippon Antenna rather murdered them in the Japasnese OEM market.