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So I know I have another thread on placing your battery in the trunk but it's outdated and since then I've had a very bad incident. The car had a grounding issue that in the end cause an electrical fire. Everything is ok and fixed now but I learned from this experience and I hope you all do as well.
For those of you who already have a battery in the trunk and say it's been running fine for years I hear you. Mine was too...but bam one day there she went. I went to start the car and nothing. I had power but she wouldn't start. Tried it several times till randomly as I cranked it over she started smoking out the hood.
**IF YOUR GROUND IS ONLY TO THE REAR CHASSIS PLEASE FOLLOW THE STEPS AND ADD A GROUND FROM BATTERY DIRECTLY TO ENGINE**
With that said I'll redo the full DIY since it is different.
I went with a full size dry cell battery in the trunk. I choose the passenger side this time to offset the weight of the driver (minor detail but still a thought in mind)
To do so I just bought a universal tray and built a bracket to make it all fit evenly.

The tray sat on a lip and wouldn't sit evenly and flat. So I bent over some steel and drilled through it.


Then I bolted it to the trunk

on the bottom I used long washers for plenty of support

This tray is going no where!
I ran my 1gauge wire down the passenger side. Making sure anywhere the cable could rub it is wrapped up safely.

I also used brackets to secure it in place. Don't want it moving on you

I removed the kick panel and placed my new distribution block. It's a rockford fosgate stereo splitter

installed my wiring

I used a 1 to 3 because (Starter, Alternator, EPS)
Then ran the power wires out to the accessories through here

under the fenders and then through the bumper one leading to starter one leading to alternator.

For those of you who already have a battery in the trunk and say it's been running fine for years I hear you. Mine was too...but bam one day there she went. I went to start the car and nothing. I had power but she wouldn't start. Tried it several times till randomly as I cranked it over she started smoking out the hood.
**IF YOUR GROUND IS ONLY TO THE REAR CHASSIS PLEASE FOLLOW THE STEPS AND ADD A GROUND FROM BATTERY DIRECTLY TO ENGINE**
With that said I'll redo the full DIY since it is different.
I went with a full size dry cell battery in the trunk. I choose the passenger side this time to offset the weight of the driver (minor detail but still a thought in mind)
To do so I just bought a universal tray and built a bracket to make it all fit evenly.

The tray sat on a lip and wouldn't sit evenly and flat. So I bent over some steel and drilled through it.


Then I bolted it to the trunk

on the bottom I used long washers for plenty of support

This tray is going no where!
I ran my 1gauge wire down the passenger side. Making sure anywhere the cable could rub it is wrapped up safely.

I also used brackets to secure it in place. Don't want it moving on you

I removed the kick panel and placed my new distribution block. It's a rockford fosgate stereo splitter

installed my wiring

I used a 1 to 3 because (Starter, Alternator, EPS)
Then ran the power wires out to the accessories through here

under the fenders and then through the bumper one leading to starter one leading to alternator.
