i need some electrical help

i have a bunch of grounds that need to be hooked up in my truck, and im having a hard time figuring out what thety are and where they go. I have the official Dodge repair manual for the truck, but all of the wiring diagrams just show that the gound is, and not what it gounds TO. when looking at the assembly instructions for anything, all is gives you is something to the extent of “fasten all grounds and connections securly.” great. that douns tell me where they go lol. so if any1 would be willing to help me out, let me know. im almost done, and its just all these loose ends that need to be tied up that are really starting to frustrate me.