I have a 87 Toyota 4runner that has a tube guard in the front. The front bumper has been removed and the turn signal's have been put on the tube. this was done a long time ago. The back lights work the front turn signal's don't. They don't light up at all. The person I bought it from said that he used a different fuse because the right one was expensive? I think they ether all work or none at all. If so, What could be the problem ?