Rear tail light ground connection

[mr bump]

Merry Xmas E3 and 9 owners and friends, as I'm sure you chaps are, I'm in the lab and finishing my partial resto/improvements on my e9.
But, my memory is getting worse, reason being, I'm now re-fitting my refurbed tail lights, but cannot for the life of me can remember where the earth/ground/brown cable connection goes to! Have I removed something?
Please help, otherwise il have to do jobs around the house!

 

[dave v. in nc]

IDK, but I'm someone will chime in...last sentence really hits home, though!

 

[HB Chris]

Isn’t it in the center of the trunk next to the bottom of the vertical reinforcement for the trunk latch?

 

[m5bb]

This is the center support, front to back in the trunk.
This is looking at it from the rear window i.e. upside down.
Brown wire to metal support.

 

[Mo Brighta]

The terminal end connects to the light ground terminal under the hole in the brake reflector - the big, funky molded reflector with the Fresnel rings.
There is a rectangle opening near the middle of the light that you probably will not be able to reach to connect the fitting without needle nose pliers.

There's a hole in the shell that the wire goes through, right between the brake and tail light connectors next to the gasket.

 

[mr bump]

The terminal end connects to the light ground terminal under the hole in the brake reflector - the big, funky molded reflector with the Fresnel rings.
There is a rectangle opening near the middle of the light that you probably will not be able to reach to connect the fitting without needle nose pliers.View attachment 57394There's a hole in the shell that the wire goes through, right between the brake and tail light connectors next to the gasket.

That's where it bloody is!! I've had a propper Csi crime session looking for it, then it pops up in the light unit itself!
Thank you chaps for the replies, NO garden centre for me!! LOL