Is this off my car? I found it in the drivers-side footwell:
(It's finger-nail sized btw)

I dont recognise it but it looks like something that might screw into an unused and threaded hole, the O ring suggests that it makes a seal.

Have a look under the dash with a torch.....or wait till your feet start getting wet

it looks like the bits that hold the door cards and trim on

:yeahthat:

Thanks, so should I look under the door then?