So this is my amp https://www.taramps.com.br/en/produto/hd-3000-2-ohms/. It says @12.6 VDC at 2 Ohms: 3000 Watts Rms. And i have 2 skar zvx 12 V2 d2 Im thinking about probably getting a bigger amp does 6000 watt sound good for my 2 1500rms 3000max peak subs? Since I am under powering them with my 3000 2ohm amp.. And if I do get this 6000 watt amp could I be looking at a bigger alternator? And if so how much bigger? I'm thinking about possibly getting 4 skar zvx 12 V2 d2. So perhaps 12k watt amp.. I also have my 4500 amp for my speakers. I have a 2010 jeep wrangler 4 door with a stock alternator my battery is also stock.. So my lights dim when I use my subs and speakers.. And my new subs amp is only putting out 0.20 on my multimeter.. But its 14vdc to the amp. I have a 4awg kit with a 100a fuse that runs from my battery to the back into a distribution block with 2 leads one to a 4500watt amp and my 3000watt amp for my subs. Any reason why I'm only getting that 0.20 out my 3000watt amp?