Bob has given you the easy way..
Any insight/input/info would be greatly appreciated
Let me give you the mad electronics man method.
Since the Extreme is not going to live forever and buying another power supply for it might be a waste of money.. try a converter..
Simply snip the wire from the current power supply.. there is miles of it. ( well more than enough).
Buy a power module..
http://www.ebay.com/itm/KIM-055L-DC-DC-12V-9-35V-to-5V-5A-Step-Down-Power-Conver ter-Module-/262136733925?hash=item3d0891…
These modules are fantastic.. I use heaps of them in my repair of Time Capsule work. It is rated at 5v and 5A. It is also about 90-95% efficient.
You don't even need a soldering iron.. simply screw the cables into the connector.. and power it from any 15W supply from 12-35v
To make it even more useful.. buy one that has USB ports on it.
http://www.ebay.com/itm/Car-Charger-Step-Down-DC-12V-24V-40V-to-5V-4-USB-Power-M odule-for-MP3-Phone-GPS-/200954463025?ha…
Then you can use it a phone charger as well.
If you buy a standard 2.1mm or 2.5mm DC socket, you can plug the power supply straight into it.
Like so. In case you think I would ask you to do something I wouldn't.
Here is my module used (with a 12v apple supply from a later Extreme.. just added for whiteness!!)
I proceeded to cut the cable from the old AE Power Supply and remove about 2cm of outside insulation.. shield is -ve.. and a few mm of the +ve inner core.
Then screwed it into the power supply on the output side.
You can now use your old airport as well as charge your phone and ipad and whatever else.
I am on a crusade to get rid of multiple voltages and run all DC stuff on 12v.
This could even be installed inside the airport as there is a fair amount of space in the top..
