I have a battery under my hood of course and a kinetik 2400 in the trunk. I have a 300a fuse on the power wire connecting the two batteries. Then on the power wire I have running from the kinetik to the kx2500 I have another 300a fuse. However that fuse is messed up and I have to put another one in it. The biggest one I have though is a 150a. No one around here has a 300a so I would have to order one. But i'm just wondering if the 150a would be big enough? The 0 guage power wire it is on is prolly 2 1/2 ft long.