I recently purchased 2 sa12 d4 to replace my p3 rockfords. i am running a punch1000 amp at the moment. the enclosure i built is 2 ft per woofer ported with aero ports tuned to 34hz. Going in a 2006 yukon xl. starting to wonder if this amp is going to have enough power. It has stock alternator with 0/1 big 3 and 0/1 power and ground at the amp.