buying an alarm for car that already has keyless entry

I just purchased a new honda civic 2005 and it already comes with keyless entry. I was wondering if stores sell an alarm package that can wire into the keyless entry config that I already have or do I have to get rid of my current keyless entry and use the one that comes with the alarm package. I guess there is always gettin the alarm at the dealership but they are quite a ripoff in price to install the alarm. THanks.

Unfortunatly not. You will have to get an alarm with keyless entry and put your factory remotes away.