I think the LEDs are brighter than the headlights...
You may be right! Some of us don't care, but there is a fix for even that.
Inserting a (and I'm making an educated guess now, because I'm not going to evaluate what I think the resistance should be, to make the LEDs dimmer at night) 10 Ohm - 10 Watt resistor anywhere between the fuse block (inside) and the wire/wires coming from the the panel next to the battery, will dim them (at night only). Greater resistance from that value will correspondingly make the LEDs even dimmer.
10 Watt resistors GET HOT. Get one with a mounting tab and place it away from any plastic parts that could melt if touched.
Alexd
P.S. If one of you does this, please experiment with different resistances between 5 Ohms and 20 Ohms, and then come back here and tell everybody what YOU determined to be the best value to achieve the proper nighttime brightness. You can experiment with cheapo 1/2 watt resistors, using them for only a few moments before they sizzle.