Thinking this might be fluid, but its got louder of late, seems to sound like a ninja throwing rope over a wall on each turn of the wheel, comes from the wheel too. Outside you can hear a whine from the turning.

Any ideas? Fluid looks okay, but might be worth a swap out.
What type should I order? 

Currently googling "ninja rope throwing sounds"  Current fleet
2011 Discovery 3.0 sdv6 XS
2008 Range rover sport HST tdv8*gone*
2000 Porsche 911 Carrera 2 convertible
1996 TVR Chimaera*gone*
2004 Vauxhall combo van*dead*
2003 ford ranger double cab

Never heard it described like that but does sound like low fluid and would be the first thing to check .. 2006 Hst 4.2 Supercharged , Angel eyes , 2010 rear led lights , indicator / courtesy wing mirror leds, Khan 21" Diamond edition split rims, full spec (running LPG £0.60 per ltr)
2007 2.7 v6 Chrysler Sebring convert sport
2006 SRT8 6.1 ltr petrol 300 Chrysler gone
2005 X5 3.0d sport gone
2001 BMW 330 ci ltd edition mtec gone

Take Rope Away from the Ninja - Problem solved!