Has anyone tried using one of these to relocate full port functionality to some other hidden place and a power only port via an appropriately made lead in the original location? Can't see a problem but I'm only an owner. Chris

2014 FFRR 4.4 SDV8 Autobiography Barolo Black
2012 RRS SDV6 HSE Baltic Blue
and before I saw the light:
2011 Suzuki Grand Vitara SZ5
1998 Ford Mondeo V6 Ghia X
1990 Citroen BX GTi
1973 Triumph GT6

Yep, I run them in mine and in 10's of my customer's cars without any issues sir...

Decent quality ones work fine - sometimes too fine, don't forget to either remove it or leave a note (don't rely on the service receptionist telling the tech.) in your car if it goes in for, well, pretty much any work. Most of it needs some sort of comms with the vehicle, even topping up AdBlue.