Hi folks

I have just recently asked about probs with my roof on my cab and got a great response to which my problem was solved

I did notice that there was something else next to the relays for the roof. It looked a bit like a relay but looked more metal than plastic.

Does anyone know what this is for? Its just that I have never had reversing lights since I have owned the car (7 months now) and I was wondering if this had anything to do with it. I have had the electrics checked and there is live from the g/box end but still no lights at rear

If this is nothing to do with the rev lights, is there anything else that it could possibly be that isn't in the fuse box under the bonnet?

Thanks