So i read this forum daily like a bible. I have a 2015 Dodge Challenger Rt plus with a stock 160 amp alt. I dont want to do the big three or add batteries. I want to keep it light as possible. But the best bang for the money. I cant replace my stock head unit as it controls my seats ( heat and air conditioned). Also i need an amp. I listen to rap and metal. I can figure out the amp part. I am looking around 2 cubic feet or less for a box. I was wanting an fu 12 but out of stock. I was looking into a B2 12. I have done research on Fi SSa sundown, Dc ,Ia, Ascendent etc; but i cant come up with a decesion??