After market remote start system

I'm considering installing an after market remote start on my 2000 Suburban. I've read about a few of them, and was curious if it would be difficult to install on my on. My concern is that my 2000 has keyless entry and will the new remote start work with my system or are there some problems I might run into. Has anyone out there installed one on their vehicle.

I have done a few of them and I can tell you one thing,you better know what your doing.If you can't read a wiring diagram or use the tools the right way this job is not for you.One mistake and you could kill the pcm or just about anything,then what?