1970 Cuda.

The wire pig tail/harness is from somewhere under the dash. One end can plug into the other FYI. I have no idea where its supposed to go. Do you?

The little nylon thing came off of a wire harness I think...? I don't know what its supposed to do. I think there's a similar one on my alt. harness? What is it?

The two round things on the right look like spacers of some sort. Are they to my non ac heater box? What could they be? There are two and only two.

Step right up and be the next contestant!

The ones on the right, are they the bumpers that touch the underside of the front of the hood when its closed?

the wire pigtail looks like its for a radio red constant power yellow is lights or keyed power

the plastic clip is one for a wiring harness that gets taped into the harness could be one of many in dozen of places the bumpers look to be hood adjustment on the radiaor support

Are the spacers hard plastic? If so, I think they are bucket seat spacers to raise the driver's seat. I tend to recall that there should be four of them? I'm only about 10k miles away from my cars, but someone here knows for sure.

The spacers on the right appear to be seat spacers. My 69 Charger has them

The round objects are VERY similar to the seat spacers... but they seem to be made of something fiberous like a composite, not just plastic (they are very hard though). They seem to be made of the same material as the heater box. And besides, my car didn't have the seat spacers before all this (I have some now). I know for sure that these are not hood bumpers or whatever you call them.

The wire harness clip thing.... what is it used for when it is taped into the harness? Does the square part clip onto something else?

I have an aftermarket stereo in my car, so I'll assume the harness isn't needed for now and put it in a safe place. Makes sense though. Thanks..

the square part of the clip slides onto the rubber covered metal ears under the dash (and other spots on the firewall and in the trunk)that are folded over to hold the harness in place. possibly like the yellow wire is going through. dave

Makes sense.

Stuff the line workers figured was unnecessary...

A common location for that harness clip is in the trunk on '68-'70 B-bodies, as stated the open rectangle goes over a tab welded to the car; the rounded part of the clip is taped into the harness.