I was thinking of putting a remote start and keyless entry system in my 97 Lumina. First of all, I have heard how tricky it can be, but i;m still willing to give it a try. Does anyone know if the door locks are positive, negative, or reverse polarity. Also, What is a DEI starter and are Commando systems any good.

Thanx For The Help

dei tend to not have very good range. I would recommend the one I have, its an ultrastart 1250 mad by ast, you can read up on it at ultrastarters.com. Compustar are pretty decent units also. I believe the door locks are posative triggered, so you will need a couple relays if your starter has negative outputs. You can head on over to http://www,bulldogsecurity.com and get a vehicle tech sheet on your car that will give you wire locations and colors to simplify the install process. Even though you may not have a bulldog starter, this will work reguardless.

You'll also have to purchase a module to bypass the VATS system for it to work.

Thanks For The information. I was actually also looking for a place to get the wiring diagrams. Thanks again.

how much are remote starts to be installed profesionally?

roughly 300 bux. They are easy to install yourself if you know what your doing.