Would an aftermarket Alpine alarm work on the B5 S4 in place of the factory one? Or is the factory one good enough as to where I dont need to replace it? A buddy wants to sell me his alarm that has never been used for real cheap.

 

well b5 s4's are known to be stolen. I know that down in english town for waterfest last year 5 of em got jacked idk if they had factory alarms or what. Id say go with something real good in place of your factory alarm.