I just fitted the Autodynamix fan loom and fan switch (green) and now my fan kicks in already when the needle hits the upper part of the M in the dial (1/4), which I think it's too early. Pushing the car it barely reaches the middle of the R (1/2) and then comes down to the M again, but the fan stays on all of the time. It doesn't even switch off in the highway, temp always in the M but fan on.

Do I need a different switch? What is the usual range of the dial the temps should move around when fan kicks in and out?