I've got the Audiovox Prestige APS996a and LOVE it so far... small remote, and the pager has great range! The installer never hooked up my perimeter lighting when he was under the dash, but one quick connect and 5 minutes and that was taken care of!

. Everything acts like it did factory, including the sequencial door locks. Like everyone else, I love the fact that you can start the truck and let it warm up, and the alarm stays on with the doors locked! The alarm also turns the truck off if power is applied to the brakes, or if it detects the idle go over 1200 rmp, pretty much immobilizing the truck from being driven off without your key. Also, the remote will confirm a succesful remote start and keep the truck running for a predetermined mount of time. You can even set it to automatically start and run for a few minutes if the outside tempurature drops below a certain point.

Frankly, that feature would freak me out, and I don't use it

You can also check the temperature inside the truck from your remote
Initially, my only complaint about the alarm was the extremely low volume of the remote. This was solved by accidently dropping the remote on a concrete sidewalk

Since then, I've been able to hear it over the diesel engine of the backhoe at work
I've also heard very good things about the DEI lineup of products. Most of the features are the same from brand to brand. AudioVox and Matrix both have plenty of Aux channels available for feature upgrades too! Just remember, the alarm is only as good as the installer!
