What the heck is it?

[FY1Cuda]

Try this one. Cuda/Challenger and maybe others.

[Alaskan_TA]

E-Body AM / 8-track casette radio.

[Lunchbox]

E-Body AM / 8-track casette radio.

[FY1Cuda]

You guys are always on top of it.

[Alaskan_TA]

Try this one;

[71challengher]

One of my sweaters.

[Lunchbox]

J-bolt for gas tank?

[DAYLEY/CHALLENGER]

Where do you see a bolt???    Don't know about the circle imprint but it could be the corner of an uncovered sun visor.....

[MOPAR FANATIC]

Rear speaker shelving board?

[71bigblock]

Where do you see a bolt???    Don't know about the circle imprint but it could be the corner of an uncovered sun visor.....

Yeah, it looks like cardboard, I agree 

[71challengher]

 

[Super Blue 72]

Yeah, it looks like cardboard, I agree 

I dunno....the flash could make metal look like that. 

[Alaskan_TA]

Nope to all so far.......

Two hints, it is a metal chromed part and every E-Body had two. 

[71challengher]

the mount to the visors

[Alaskan_TA]

Nope. Think lower.