Haven't seen any other Z coming with exterior and interior light so it might be interesting to share.
Ground light is OK pretty visible any time.
Interior light is very dim and barely visible during daytime. For those of you considering OEM it may not worth the ~$450. It does light up both cup...
Been struggling with mine as well, but finally decided to put it on. You may get away most of the time but when police pull you over I believe a $75 fine in VA. I decided to avoid any trouble since there are a lot of patrolling police cars around my area.