Where should I stick this?

[ChrisHGTV]

The hole in the ‘teat’ looks rather large for a cable supplying a light on the vehicle, which makes me think of either a tow bar 7 or 13 pin cable, (although 53mm is a bit small for a tow bar socket) or a mains cable for a lead lamp?

is the inside clean or dirty? If the latter it could be a drain plug, such as in the boot floor.

Nothing to do with straws, is it, as that’s what I appear to be clutching at here....

Ah well I do have a removable tow bar fitted so that could be a good lead! Inside was clean - that’s a really good point because if it was a drain you would think there would be residue of whatever was draining in the blocked teat.

 

[ChrisHGTV]

I think on top of the charcoal canister

I wasnt even aware I had one of those!

 

[wrdcc01]

Looks like the tow bar grommet, furthest hole to the right under right hand tail light. Maybe this was the original with a single cable passing through for rear parking sensors) and it was replaced and left behind.

 

[ChrisHGTV]

Ah thanks, I’ll have a look!