Dash LED Upgrade Doesn't Work - Because?

Here's how I did mine. Even though I only had two bulbs. lol I used the test light to figure out which connection on the circuit panel was positive. Then I marked tha side and the socket with some white fingernail polish to have a reference. Then I put the bulbs in with the dot on the side of the white mark and installed the socket lined up with the white mark on the circuit board. It was just two and I know I went to some extra trouble, but it helps.