With the 1157 bulb, there's only one way to get the bulb into the socket because of how the pins are on the base of the bulb. The socket that I received had the poles reversed, so when I plugged in the bulb, it did not flash, but stayed on constantly. I pulled out the bulb, turned it 180 degrees and pushed it into the socket and it blinked as it should. The problem is, the grooves on the socket wouldn't allow the bulb to lock into place when turned 180 degrees. Instead of returning it, I just took a box knife and trimmed some of the plastic inside the socket and it then held the bulb in place.
Should have just gone to the dealership to get this. First it looks like the oem part but when I plugged it in the polarity was wrong high on when low should be on and vis versa , second the metal in the socket was not copper like the factory part . Also the gasket that came with the light made it nearly impossible to put in because it was so thick. Went to Honda and got the socket works perfectly.