Does anyone know if there is a plug n play harness for installing a new stereo I am having issues locating one for a 99 XJ8

 

You can do a search and bring up many threads on this. Like this one just a few threads down...https://www.jaguarforums.com/forum/x...grades-114755/
The plug harness shown though I am unsure if it works. I tried referencing it and its listed for a '03 and up, but he says its for '01-08. You can also use the wiring diagram from here....JagRepair.com - Jaguar Repair Information Resource It has the complete wiring diagram with color code layout under electrical.