go w/the Clifford RSX 3.5 it's a dei product which is based on the old viper systems. it comes w/a 2way remote, remote start, everything you could want just short of a proxy sensor. there's a shop in falls church called cellcom that can give it to you installed for under $500 depending on everything you want done. call them for more info and pricing Mon-Sat. 10-6 (703)538-2500