I have no idea when it comes to audio.. ops:

soo just wondering what gauge power/grounding wire i should use, and how big the fuse should be for 2 amps that i wanna wire up:

- 4 channel amp running at 2x200w RMS @ 4ohms draws maximum 40A current.
- 2 channel amp running at 1x200w RMS, don't know what current it draws.

Also how should i wire the 2 amps?

battery --> fuse --> splice the wires? or should i use those distribution block thingys?? --> 2 amps --> separate grounding cables?

thanks heaps.