so im looking to get a simple alarm. i dont have power locks or windows so it makes it somewhat easier. i checked the local shops, and i came up with three brands. Skytech, Viper, and K-9. the first two i heard were good, while the second one people can easily bypass and break into. Viper has the ability to talk like "back away from the car" and all that good stuff. and skytech is one of the better. thats all i know. any advice?