I recently noticed that my stock spoiler LED tail light seemed loose (had too much play when I tugged on them), and Jeff (or Ffej) @ SOS said to take off the bottom spoiler caps and tighten the screws. I checked all my NSXs, and there were loose screws in each spoiler. Chances are, yours are similarly affected if you haven't checked them before--even if your LED tail light doesn't appear to be loose. Simply pop off the spoiler caps and you should see the screws, as shown below. The screws go in at an angle, so they are easy to secure. I noticed that my blue NSX was completely missing a screw and spoiler cap, so I'm ordering a replacement in the morning. The part numbers are here, #7 (color specific for each car; 71703-SL0-003ZQ for my 99 MCB) and #39 (93903-444G0).
![led_tail_light_screw1.jpg](/proxy.php?image=https%3A%2F%2Flh3.googleusercontent.com%2F--37p2EMIpfQ%2FUC4AoIpsPVI%2FAAAAAAAADT4%2FA6UjJisCS8g%2Fs800%2Fled_tail_light_screw1.jpg&hash=c72e40174a80f88f84649939ac43c0ff)
![led_tail_light_screw2.jpg](/proxy.php?image=https%3A%2F%2Flh5.googleusercontent.com%2F-PVBtAhX0NYw%2FUC4ApP9CdaI%2FAAAAAAAADUM%2Fp2IZRcqXyyI%2Fs800%2Fled_tail_light_screw2.jpg&hash=7d9d4258fb193abeeec0314dc4e3a5f9)