if you use your cig lighter theres the plug on the end of the cord, and wire is all in plaint sight.
you can buy a new power port. same thing as a cigg lighter ( like 6 bucks) wire it to the fuse box power only when key forward, then a ground, you can ground that under the dash to a screw that touches metal. and drop it under the console, run the power cord back there to. have it set to only have power when the cars on, that way the unit turns off and on when you turn off the car.
or wire it up to that drop down power wire up in the dash, it looks to hard to deal with me, ive seen mine. im tapping the fuse box.