Here is a good product that has restored the look of my D40 steering wheel control covers. ( right hand drive, Spain build)
http://www.ebay.com/itm/Steering-Wheel-Control-Covers-FOR-Nissan-FRONTIER-PATHFINDER-NAVARA-XTERRA-EALLE/131695035035?_trksid=p3693.c100102.m2452&_trkparms=ao%3D1%26asc%3D20140212121249%26meid%3Daaa20de9e5184eea8f073b61893cb4de%26pid%3D100102%26&rmvSB=true
I found removing the airbag made the finish easier.
http://www.ebay.com/itm/Steering-Wheel-Control-Covers-FOR-Nissan-FRONTIER-PATHFINDER-NAVARA-XTERRA-EALLE/131695035035?_trksid=p3693.c100102.m2452&_trkparms=ao%3D1%26asc%3D20140212121249%26meid%3Daaa20de9e5184eea8f073b61893cb4de%26pid%3D100102%26&rmvSB=true
I found removing the airbag made the finish easier.