2 batteries

Hey I’m gonna run a 1920 watt rms system in my truck but I’m stuck on figuring on my batteries. I’ve been looking everywhere but can’t figure out if I can run my flooded oem battery as the starter battery and an agm deep cycle battery for the system. Like can I connect them by an isolator and...

I just purchased a new Kinetik HC1800 and was going to use it as my main (starter) battery. But just yesterday my original main battery died still under warranty so i go a new replacement. Its a Autocraft Gold from Advanced Auto. Will i run into problems if i decide to run both batteries...