i have installed a few alarms over the years. i would change 3 things about the way you set yours up.
1. put the L.E.D. in a more visible spot. that is the best deterant for somebody looking in your jeep.
2. put the valet button in a hidden spot. you can (if you know what you are doing) disarm the alarm using that button.
3. put the siren lower on the firewall. that will make it louder, since it will bounce off the ground. and it will make it harder to just open up your hood and cut the siren wires.
i have had lots of vehicles broken in to. and all of these are things i have had to learn the hard way.