Power Antenna blowing fuses
I replaced my antenna mast today. I took the motor completely out of the car by releasing the top of the assembly which goes over the mast. Since the cable was broken this allowed the rest of the assembly to come out. I removed the broken cable section inside the housing. I then fed my new mast in and got it working on the ground using a 12v battery I had in the garage. I got it going up and down by reversing the polarity. Works great. Now I hook it back up and as soon as the radio is turned on immediately a fuse blows.
Its definitely the antenna blowing the fuse, it is fine when the antenna is unplugged. Any ideas on what could be causing it? Any way I could have put it back together that would do this (but still leave it working on the ground)?
Also, what tells the antenna motor when to stop?
1998 4runner SR5