Hello,
a couple of months ago I installed an insurance black box in an Infiniti QX30.

A few weeks later I got a message from the insurance company about the malfunction
of the box.
It says the permanent positive is not permanent.

I install several black box in a month and THIS is the first time I have an electrical problem.

But Infiniti are rare here so I ask: does this have a positive that behave as a permanent
but is switched off after some minutes??