HI guys need your help here. Please bare with me, I'll try to be detailed.
Currently running 2 Fosgate P400 amps via ONE 4-guage power line from battery to a distribution block, then to the amps.
I'm adding a Kinetik HC800 battery. Due to mounting location I need to 'extend' the power cable to make it longer. Can I just use a fuse holder to extend the power cable or should I / need I run a proper new, longer line?
Secondly, I can just ground the NEGATIVE post on the Kinetik battery to chassis ground or do I need to run a cable to the Negative post on my car battery?