DIY: Battery relocation to trunk
 

Picture 1

Remove engine cover.
Remove battery cover.

(Consolidation coming soon for easy and more detailed setup, as well as other setups from other members)

A little side note run a good ground from the engine to the chassis, and maybe an extra ground off the battery for a more ground proof setup to another sturdy spot in the back.

Picture 2

Disconnect the battery.
Remove battery tie down.
Sounds harsh, but slice through the main harness being careful to only cut the wires that keep the lines by the battery mainly grounds, EPS. It's easier to tell once you got all the wire loom and tape off of everything. Picture of the postive terminal block is on page 2 post 49.
Keep track of the ground wires by putting the connectors on them.

Picture 3

Take the battery box out, sorry I didn't take pictures of the bolts while the box was in.
The bolts are located by the arrows and are 10mm.

Picture 4

Take the 60 amp fuse holder and connect the EPS line to it.

Picture 5

Just a closer picture of the fuse holder for the EPS line.
Under the holder you can see the ground wires and the location I picked to ground them.

Picture 6

A clear shot of the ground wires.

Picture 7

Take the 100 amp fuse holder and connect the main power line to it.

Picture 7

Sorry, got ahead of myself.

Picture 8

Connect both fuse holders together along with the rest of the power wires.
The arrows show the fuses put in the holders.

Picture 9

Run the 2ga wire up along the strut tower.

Picture 10

I ran it under the harness, don't forget the zip ties also.

Picture 11

Shows it going through the firewall, make sure to put some grease on the end of the wire so it will slide through easier.

Picture 12

Shows the wire coming through the inside of the firewall. I had to put a slice right below the wires since the hole would not stretch anymore, be careful since you need to guard against the metal, when I cut there was plenty protecting the wire.

Picture 13

The circles show where the plastic trim would be, take them off.
The arrow up by the number 13 shows you have to take the drivers side seat out.
Run the wire where the arrow shows close to the fuel lever.

Picture 14

In the circle is a hole that runs under the support, you will need a thick screwdriver to pry up slightly to fit the wire under.
The arrow shows a ton of electrical tape since it will be surrounded by metal, just a precaution I like to take.

Picture 15

Shows the wire coming out the other side.

Picture 16

Run the wire along side the back seat now.
The arrow up by the number 16 you gotta take the seat out.
The circle show the seatbelt rail, it must come off also.

Picture 17

Shows along under where the back seat would be.
Don't forget the zip ties.

Picture 18

Shows the underneath of the upper back seat.
The top arrow shows where it goes into the trunk.

Picture 19

Shows the other side by the arrow where it comes in from the inside of the car to the trunk and the route.

Picture 20

You put a small slice in the carpet.

Picture 21

Put the slit in for the ground wire.

Picture 22

Run the ground cable to the passenger side strut tower.

Picture 23

Shows where to connect the ground wire.

am i missing something - why?