Help with Fuse 17

[Numbaonenewb]

2000 Explorer XLT. My Fuse 17 keeps blowing and I can't find out why. What does this fuse draw for current normally because mine draws 15A all the time? I know it connects my cig lighter and my OBD II port and that it requires a 25A fuse but can't figure out anything else. Please help.

I noticed that on the inside of the cigarette lighter port, the finger that comes up along the inside connected to the positive power was bent and touching the sidewall which is the negative, causing a short