3rd brake light works but the other brake lights do not. I have no power from the white wire from the connector on the steering column. I did the search and found out it may be the turn signal. I want to cover all my bases so I changed the brake switch, bought the turn signal and I have a steering column on the way. My question is do I need to change that lil box out too and if so what is it actually called? What does it do? Thanks in advance.