I am trying to find a solution to provide my vehicle which has a 94R/H7 12v battery and a 150amp alternator with enough power to run a car audio amplifier which is a Taramps Smart 3k audio amplifier. The amps power input is 12v-16v and has a 150-300amp draw or requirements. I am very new to all the electronic stuff but am fairly capable and learn very fast. I know I could just buy a HO 320-370amp alternator and throw a aux battery in but I want to be difficult I guess! What would be a fairly cost efficient way to resolve this? I have seen these Brazilian audio companies that have bivolt ac-dc charger/power supplies which can provide up to 150-240amps but that would require alot of headache as well. If there is a way to use like a boost converter then make it provide continuous 16v directly to the audio amp with a minimal input requirement from the vehicle power system that would be great. I guess kind of like an super efficient electronic alternator that runs off the electrical system. Any help would be great! Thanks in advance!