so far it makes sense... now for the 2 amps I'm about to install... I'm thinking of 8 gauge power and ground wire for them.

battery~~~4g wire~~[dist. block]~~(2)8 g wires~~|firewall|


should I keep the distribution block 10 inches (or whatever short length) from the battery diagramed above? ...OR can the distribution block go in the trunk to seperate the 4 gauge wire into (2) 8 gauge... and run a fuse 10 inches from the battery

The 2nd way I got from this picture from another install ...