Basic stuff:

- Good alarm with just nough features to make it cost-effective (you already mentioned what you want and will do). Personally, its not worth it to put anymore than $500 into an alarm for a car worth under $10G's. That's just how I feel about it.

- Additional security measure like The Club or Autolock

- Hood cable relocation : http://www.jdmfan.com/technical/audi...release_cable/

RE: audio system

- make sure everything is stealth - meaning all the wires are hidden well and that you have a deck that has a detachable face or the face can retract in. A TV/LCD screen is not stealth and will attract thieves.

- don't advertise your stereo by playing it loud in your neighborhood, when you are close to arriving to your destination (mall, school, etc) where you will be parking your car for an extended time period, and definitely not in the ghetto neighborhoods.

- PLEASE don't put stickers on your car that say Alpine or Rockford because you're basically telling the thieves what you have.

- Also, even though its your car and you want to put a body kit on, I would suggest to not do so. Body kits are expensive and painting them is even more expensive. Is it really worth it??

In the end, the lesser amount of attraction your car draws, the better off you will be. Only invest so much into anti-theft devices and car stereo. You yourself said the car ins't worth much, so why would you want to put a lot of your hard earned money into it. Just do enough to make it nice and driveable for now. You'd be better off saving money and looking into buying a better car later on.