led turn signal arrows

I have jeep grand cherokee 2001. I am trying to install some after market signal arrows to the mirrors. it has a negative and positive wire instructions tell me to connect pos. wire to the signal fuse. can someone help me out with this. thanks.

The "signal fuse" is the fuse from which the turn signals are run. Check your owner's manual, it will have a diagram of where that fuse is located. Then it should be a simple connection.