Phone hard wire

In all my previous cars I have hard wired the 12v phone charger to the rear of the cabin 12v socket (behind or under the dash/console). I then run the cable as best I can to be hidden with only a tiny bit exposed to connect to the phone.

On the A6 I was planning on using the under arm rest 12v post, but the cup holder is in the way when I popped the MMI interface off from the center console. I don't really want to pull the entire center console out to achieve this, so am I best to go to the rear socket instead and run the cable down the entire center console?

Also if anyone has any top tips for where to run the cable to the center of the car, as I use a cd drive phone mount that would be great.

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