show me your 2nd battery

i have a second battery (for audio) that was in my old car. im looking to put it into my truck but am wondering on where. im up for ideas and suggestions, pictures would be a great help, as well as where you ran your wires

 

bump, thread fail and i still need to find a place to mount my second batt

 

there are many threads, just search

 

Depending on what size you decide to run, there is some room under the hood--I could see one of those Odessy or similar dry-cell batteries in a custom holder behind the stock battery and wiring. There's also a lot of room behind the bumper if you're willing to risk putting it there (but really, in an accident bad enough to crush that area...probably more to worry about).

I could also see you building or buying a box to put up under the bed. Hard to access there, but pretty well protected.