Hi im thinking about getting an aftermarket alarm system put in with remote start, i was looking at prestige and viper. I just wasn't sure if either one will cause problems...i have a 2004 GP comp g and it has the factory alarm but the horn on it is kinda crapping out so that's the reason i want to get a new one, not sure if that'll interfere with anything. Any info would be great or input from personal preference on systems. Thanks.