How to determine Make/model of unit?

Hi everyone, This is my first post here, but I've lurked, searched, and found some great info in the past. I have what I believe to be an Astroflex remote start unit that i removed from a vehicle on our used car lot. I've intalled many remote start and alarms in the past, but I'm not familar with this brand. The reason I believe the unit is an Astroflex is that the GM Passlock III interface that was on the vehicle has the astroflex name on it. Everything was working correctly when I removed it, but we have a policy to remove any aftermarket systems from used vehicles. The printed label on the rear of the main unit is: OB 3250 TW serial # 567 385 599 825 FCC NAH 800R Canada 2678 102 309 A Besides the main unit and the passlock III interface there is also a smaller "black box" with model: IMO720 Before I go too much further, can any of you guys help me out with figureing out exactly what I have here? My goal is to reintall the unit, minus passlock into my '90 Celebrity winter car. Thanks, Dan.

i've found model #s on the circuit board before so open it up and if there are any numbers search them on google. thats what i do bring back the rotary phone so i dont have to press 1 to proceed in english

That's an Autostart/Pro Start brand model 3250TW from Canadian Tire.Jeff

Velocity Custom Home Theater

Mobile Audio/Video Specialist

Morden, Manitoba CANADA

Thanks for the help guys. I can't find an installation manual or wiring diagram for a model # 3250TW but I think I've found something close. Most of it is the same. Won't hurt to try it.

All installed and working fine. Thanks for the help. I've just got the door locks and liftgate release to hook up. Is this fairly straight forward on an early 90's chev? I've only ever done door locks on a Dodge.

Got the door locks figured out. Just had to use a couple relays to switch polarity. I cant figure out the liftgate release though. On the car, it only works with the igition on. As far as I can tell, the liftgate release is activated by applying a ground through the release button to a 12v key on circuit. I can't figure out how to apply 12v to that circuit, and then ground that circuit with the neg trigger from my remote start unit. Maybe my brain is just too fuzzy from too much overtime.