Ground? confused.
 

What is this. I just removed and replaced my motor. only thing that I'm lost on. what is thissss.

Attachment 204661

I know all 3 go together now where does it go.

Information

car: 2005 rx8

Location: wiring harness going down towards starter

It look like the battery terminal. The starter power wire has a white plastic cover.

Agreed, positive battery cable. Not a connection that you want to screw up on... :)

Um i have my 2 battery terminals but idk you guys are the expert let me give you a better look
Attachment 220967

The fact that it seems like it should have a cap over the end suggests it's a positive power line, and not a ground. The only two big connectors like that are the positive battery cable and the power cable for the starter if I recall correctly.

If you have the battery one, see if it reaches down to the starter and seems to fit well against where the positive cable bolts to the side of the starter.

There is a ground in it. i forgot to pull it out. and yeah it leads straight to the starter i just can't seem to see where it goes. the ground doesn't fit the bolt sticking out of it.

Yup goes to starter. next question does that ground bolt right above the oil pan driver side? gonna upload a picture in a few seconds.

The starter's ground is the much smaller clip that fits over the pin on the starter.

Have no idea where this ground goes
Attachment 220966

No, that's the hot to the solenoid. The starter's ground is through the transmission/engine.

There is another actual ground on that line a little further back that connects to the engine on the side near the coolant drain plug.

Whoops, i guess you are right. My mistake.

Yes it's on the center iron right by the coolant drain plug. Everything on that bundle should match it's connection and all the lengths should seem normal. If they don't then take a step back and figure out what's wrong. If you screw this up you will be arc welding with your battery.

The ground is just a little eyelet. The power to the starter has a plastic cover (to prevent inadvertent shorts, or easy hot wiring) and the solenoid connector is a plastic covered spade connector. I can't think of anything else on that bundle offhand, I think the oil level sensor comes from the top with the oil pressure sensor, but I might be wrong.

Just in case don't connect it to the battery before getting it all ran and secured.

does anyone have a look at there rx8 undercarriage. see where it all is. or a picture