so after some googling, this board has got to be a resistor for the LEDs. I checked ebay, since this must be a cheapo kit, and found a seller who I think pretty much has what I've got; as the color of the wiring is the same, 1 brown and 1 grey into one LED on one end of the ring, and 2 greys into the other. This pic is of a kit for an e46 as it includes the mounting tabs, but the e36 version should be similar. the e36's pics weren't as good.
so now I'm wondering what the resistance of this board is. I've contacted the seller, but anyone here know?