2100 astrostart upgrade

I have an astrostart 2100 on my 2000 monte carlo. I am wondering how hard it would be to upgrade to a newer two way astrostart model?

Well it would be like installing A whole new system. The only thing you can reuse might be the bypass module. Are you planning to do the install urself?No better feeling then getting a remote start to work right!

Im sorry i thought you ment changing to another brand. If you mean just changing the brain and or transmitters and use the same plugs, i dont know check there website see if theres some info on it.No better feeling then getting a remote start to work right!

it would be an easy switch if you had a upper model 2way there would be a little difference in the harness p2 16 pin. think the hood pin is in a different spot but it you get an older one it should be unplug the old one and replace the antenna. you would also have to program it and would a to know what aux outputs do what and and what the program abale relay is used for.