So im in my sister in law's van...scanning for codes....when i see this black box with rca's coming out of it. I flipped it right-side up and to my surprise it was a old school 4 band eq.

http://i792.photobucket.com/albums/y...psvzxsejwv.jpg
http://i792.photobucket.com/albums/y...pscjtbqlxt.jpg
My question is how to properly install this in the car. Im not sure if it will turn on but im curious to find out. I have a 4 channel amp for mids and highs and a 2 channel for the subs. Thank you