Part identification

[PermaChanged]

Just picked up a new to me Nissan E-NV200, and there's a couple of non standard bits installed and I'm clueless as to what they are - I'm not sure whether they're linked to one another?

First is this black box, with a red light on it....

4 wires going to it

Second part is this - the buttons audibly beep when pressed with no other apparent function - cable running up under the dash

Absolutely clueless to what either of them are, and Google Lens isn't helping me identify them either - can non artificial intelligence help identify them?

 

[PermaChanged]

Just had a thought, could potentially be an immobiliser with a 4 digit code to arm/disarm?

 

[PermaChanged]

Did you not think to ask the seller?

Don't be so ridiculous, why would I do that when I can ask the internet!?

I should have clarified that the seller said they were installed already when he bought the van, and he never queried it.

Ex company van perchance?

Certainly seems that way!

As long as they don't ever interfere with my ability to use the van then I'm not too fussed - but I would rather remove them once I know what they are!