There is no grey hunny, STOP DRINKING :P, I've only seen white (NON-SP) and black (SP) did he have heavy polish black? If so he must have retrofitted it or bought it that way, it can be done and has been done many times, I had a Sterling Grey on Black X5 with SP and my headliner was black, I didn't have any other choices

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The Present:
2014 Audi Q5 TDI Prestige
The Past:
2013 Lexus GS350
2013 VW Golf TDI
2007 BMW X5 4.8i LOADED & Loved
2009 VW Jetta
2008 VW Touareg VR6
2005 BMW X5 3.0i
2005 BMW Z4 3.0i
2004 BMW X5 3.0i
2003 BMW 325i
2000 Ford Explorer Eddie Bauer 4x4