V50 rear lights
 

its taken me a while to notice not all the rear lights are working and hasn't effected the mot ive replaced the top bulbs recently and the cluster is now more illuminated but the led isnt working while browsing this subject i found a video about a diode on the lead circuit board ive purchased a few and will let you know how that goes. my question now is regarding a second video i watched customising the rear lights on a XC70 would the wiring be the same on the V50?

LED https://www.youtube.com/watch?v=FaEVCuq5fXQ

Custom https://www.youtube.com/watch?v=-XMx8HhoGxM