engine bay mystery

[mention1]

This is a little embarrassing but there is a componant in my engine bay and I have no idea what it is!

It is a box about the size of a brick located below the brake master cylinder. It has an electrical cable and what appears to be a twisting cable that leads to the carbe. I only noticed it today because when I turned on the ignition it started to make a whirling sound!

Any ideas?

[Jethro]

You need to ask Bfit he's the guru when it come to back Boxes especially in C6's   

Bobby does a C6 have Carby ?

[bfit]

Can you post a photo
Bfit

[rosco]

Has the car been modified to rhd.

Rosco

[sirfixalot]

Maybe  cruise control

[Lefty]

Energy polariser?

[bfit]

Mmm Peter Brock 

[Vettech]

Probably a flux capacitor or if it ticks and the previous owner was an Alqeida affiliate then a .........either way dont park near the corner of Bathurst & Castlereagh Sts or near the Deaken "telephone" Exchange Canberra.