I have an UL 2002 LS430 with interior code LH05, which I know to be ecru. I'm looking at a replacement interior part which is from a 2004 LS430 (do not know if it is an ultra-luxury or not). The part looks to be the same color, but the seller says the interior code is LA07. Is there any way to know if this code also indicates ecru, and whether the codes are in fact interchangeable, perhaps indicating only different years? I do know that ecru was available in each of these years. Also, does the L in the color code indicate ultra-luxury? Thanks so much - these color codes are maddeningly hard to find on the internet.

Mike