I've just ordered a fullfatrr.com sticker from the shop. While I was there I had a look at the other items, one was a dummy obd port, the idea being you replace your obd port with the dummy which is non functional. Why would you do that, is there something I'm missing?

you are able to purchase gadgets that you plug into the ODB that allows you to turn off car alarm and start the car!! they plug into the ODB port.
the dummy one allows read but not send any commands to prevent this or slow a would be thief down 2012 Vogue 4.4 TDV8 - Current
2014 Navara V6 - Gone
2004 Vogue TD6 - Gone
Grand Cherokee - Gone
Discovery V8 (LPG) - Gone
Discovery TD5 - Gone

There are threads on here ref this.

https://www.fullfatrr.com/forum/topic51512...=obd+dummy
https://www.fullfatrr.com/forum/topic55092-45.html

or buy it here

https://www.ebay.co.uk/itm/Land-Rover-Dumm...SwIsZfa6cx

There's nothing stopping you replacing the existing port with a totally non functioning second hand version & relocating the existing one far enough away to slow down / confuse any potential scrotes.
You just need to remember to tell any eventual buyer of your car - lol. Paul,
2001 Discovery 2 TD5, 211,000 miles & climbing
2006 FFRR TDV8 Vogue 145,000 miles & climbing
Member of Midland (Land) Rover Owners Club, www.mroc.co.uk

Thanks for reply's guys, I had no idea you could buy kit like that.