Project Phoenix Gold Elite! Where to put the second battery?

[ikegarcia24]

I'm putting a full Phoenix Gold System that will be over 4,000 watts of power, so obviously im adding a second battery. But my question is, where can I actually fit the second battery? Other than taking the factory air filter out and doing something there, I'm kind of out of Ideas. Does anyone have any suggestions?

Truck: 2009 Dodge Ram Crew Cab W/5.7L Hemi

 

[VegasDragger45]

I've always thought that one of the floor storage bins would be a good place. Then you could run all the wires under the truck to the front.