The gauge works just backwards. When the trim is all the way down, it reads all the way up. When the trim is all the way up, it reads all the way down. The old Faria gauge read left to right. The new one reads up and down. That part makes no difference to me.The connections are the same. I was very careful when installing the new gauge making sure the wiring was just as the instructions, which was the same as the old gauge. If I reverse the positive and the negative connections, will it correct the problem.