Dash cam e class

[MHG]

I’ve got a dash cam to fit into my 2017 e class cabriolet, I’m having a problem in finding a suitable power source as all the fuses I’ve checked seem to be live all the time.
Any suggestions pl are

 

[EmilysDad]

You could tap into the feed for the ciggy lighter ...

 

[MHG]

Problem solved, suitable fuse sourc found under boot floor