I had a commercial Viper system, by Directed Electronics, installed
in my 2001 SE. The origional door lock system still works along with
the remote start/alarm system. My only comment would be to make sure
the antenna is placed high on the windshield ( behind the rear view
mirror) so that you get maxium distance for the remote start. I also
had a Hornet system installed in my 97 Accord and both are great.
http://www.directed.com/Jeff