I want to Install extra fuel tank in my Wrangler 2015

[pwuser150729011915]

I want to increase the range of my Wrangler jeep by adding an auxilary fuel tank.
It is currently equiped with 60Litre tank, giving a range of 450km (apx.).
I want to add an aditional auxilary fuel tank of arround 100litre..
Any suggestions....