ok so i got 20 feet of battery wire and a 4 gauge fused distribution block. How do you tuck the battery to the trunk? im not sure how to tie it down. plus my battery is 7.5" high and the spare tire space is like 5.5-6" high. will there be welding/fabrication involved in what i thoguht would be an easy mod?

 

Most people put it off to the side. They use a battery box.
Exactly like this: