electronic trunk release

Thanks for the manual uploads.  Interesting unit.  It is an alarm system with keyless entry.

It appears that the Gray 2nd Channel Output wire is your Trunk Release Output, but I can't be sure from the limited info in the guide.  That wire would be connected to the relay mentioned above.

If your car does not have a trunk pin, you can always install your own and connect to the Blue Trunk Trigger Input wire.

Soldering is fun!

Thanks. I'll proceed per your instructions. Incidently, there is a wire off of the trunk latch and the key switch mechanism.(two seperate locations and different color wires) One of those operates the light in the trunk. I could use that for the Blue Trunk Trigger Input wire if the polarity is correct. Would that connect directly to the blue wire regardless of polarity. (I'm pretty sure no. Of course the polarity would make a difference.) I verified the wire off of the trunk latch mechanism is a single wire that operates the trunk light. How would I determine polarity of that wire with my DMM? I'm not sure of the other two that come off of the key switch mechanism, yet.

It turns out the other two wires went to the factory alarm. If you're still out there, is there anything electronic I may have laying around broken (lots of broken electronics here) that I can rob the diode out of?

Most Printed Circuit Boards have diodes but you need a blocking diode ( not a zener, etc ).  You can check the printed marking on the diode for 1N4007 or 1N4004.  If you find them, delicately de-solder them and then check them with a DMM.  Here is a link : http://www.ehow.com/how_7378447_test-diode-rectifier.html

The easy way, would be to go to RadioShack and get a 3 or 5 pack of 1N4004's for about $2.

Soldering is fun!

I didn't want to go to the Shack,really. I went ahead and went though. Thanks for your help.

All the trigger wires in the Toyota are NEG. Do you have a SECURITY LED on your instrument panel? If so you have a factory alarm and its location on Japanese and UK models was right rear quarter behind the door. Doors, front and rear storage areas and engine bay all have triggers.

Hi howie II, The factory alarm is not present. The Mr2 has had the Car Pro alarm since I've owned it. All the factory alarm wiring is present, which makes it easier. Thanks for checking out the post, every suggestion is appreciated.

Then the switch (trigger) wires from the front and I think rear cargo areas and the doors all go to that location. The engine bay is quite easy to mount a switch, go through the right there's a massive grommet in the bulkhead, left r/hand rear carpet on the other side and you're through. P.S. I also mount the siren on that model there, can't be got at and better sound, also I then mount the alarm module and right front seat. Don't worry about long cable runs, the wiring at the ignition switch is thin gauge, esp. the starter wire.