I have Cyclops installed in mine, just the keyless entry side as I decided the alarm wasn't as essential for me at this stage. But I had the alarm system in my last car.
I always use Mongoose M60s alarms....And when it's installed ask em to wire it up for Turbo Timer Function....Will also need to put a Piston in the Drivers door
I was untill 3 weeks ago a Car Audio etc. Installer
Was looking at just a Nissan Remote Central Looking kit, but after consideration on price etc, am now looking at having a Mongoose M60s Car Alarm fitted, not that much more and as stated above I also get a turbo timer as well all for around the $370 mark.