Planning to get a Viper 791XV for my 2001 A4. Now to the best of my knowledge there is a turbo timer feature on this unit. Is a turbo timer something worth hooking up? Is it going to end up being more trouble than its worth? Any feedback would be great! Thanks! Also any thoughts on hooking up a car starter to my audi. I live in Winnipeg where it can get pretty freakin cold.