hey guys this question is somewhat hypothetical... however i was wondering, and this may be quite a stupid question, but can you put a viper autostart and alarm in a 2008 gxp, i bought the alarm for my 05 base model but never installed it and am about to sell my car to buy a 08 gxp and most gxps come with autostart already, however im guessing the viper unit would be a significant upgrade have longer range and add extra alarm security, however would it be difficult since there already is a stock unit or can you guys give any suggestions or input as to this situation?

here the viper kit
http://www.amazon.com/gp/product/B00...?ie=UTF8&psc=1