Wiring positive to starter, alternator, and negative to body, etc., diagram needed?

Sure, here are the main wiring diagrams for the battery, main ground and the alternator, please let me know if you need anything else. If you have a question just upload an image and I can help walk you through the problem.

Additional ground straps are used to connect the body and frame to the engine and transmission. Always connect all ground straps to ensure a good ground path to the battery from all electrical components.

Check out the images (below). Please upload pictures or videos of the problem so we can see what's going on.

What dose this connect to or connect to it?

Thanks for the image and video, it looks like that is an aftermarket device I don't recognize, does your vehicle have dual batteries? also if you can back up a little when doing the pics and videos it will help me see more fo what's going on.

Okay, I hooked my positive up to the alternator, starter, and fuse hub under the hood my neg to the right fender well and front of the motor so what's this and where is the 2nd wire for my starter.

Does that lead come off of the battery cable itself, because on aftermarket battery cables then have an auxiliary power lead that is used in some applications but not all. If you can back up slightly with the video or image so I can see the arrangement it will help me see what's going on.

Okay, that thing is mounted behind the battery on the fender well and that is the only cable coming off of it and I can't see another wire anywhere that would connect to it but I'll upload pictures when I get home in the morning.

It looks like it is a junction block for the battery cables that is why I asked if you had two batteries. When you upload more images we can continue.