Used Chevrolet C/K 20 for Sale near Texas

I have a 1980 Chevy Scottsdale that won’t show any lights or anything when I turn the key to accessory brand new battery since it hasn’t had one in 4 years (been sitting 4 years) I try turning the key and no lights anywhere no click from the starter, nothing. Don’t know much about this truck and have no clue where or what to look for. Something that may have nothing to do with it is a little electrical box that sits on the passenger side wheel well, the positive line runs through it along with a few other lines then off to somewhere under the left of the engine

Great truck. Fun as hell to dirve. You never have to worry about ground clearence, curbs or anything in your way. Loud as hell with a powerful exhaust note. No Cats Required

It drove good but needed a jump everywhere I went