Hey guys i caught a really good deal on a 07 dodge ram 1500 guy sold it to me really cheap i know it will need some work due to the truck being flooded in the process of looking for a motor now but mainly want to figure out what i need to start replacing first to get power. When i hook the battery up i only thing i get is dome lights and the mileage on the odometer when i put key in and turn it it has no power nothing comes on at all but the headlights do come on (WHAT SHOULD I START REPLACING FIRST TO GET POWER BACK)

 

So the car is back all together, including engine and PCM and stuff?
You should start measuring from the battery to the power module and to the PCM to check if you get voltage everywhere?!