How did you route the positive cable: under the floor or through the interior (I've seen both styles in various internet posts); and where exactly (might save me some time in experimenting to find the easiest route)? Where did the cable go from the outside to the inside of the car? What gauge and type (battery or weld) of cable did you use (I'm leaning towards a 2 AWG weld cable)?Here's where I've relocated the battery to in a GT. It rests on welded bracket on the floorpan. Hold-down studs are welded in place, and the top hold-down bracket is aluminum (custom). Ground stud is a stainless bolt welded to the chassis. There is also an auxiliary fuse box under the rear "seat" panel for accessories. Both sides of the upper and lower seat panels are retained by spring-loaded clips, and are easy to access.