I used a cheap pair of speakers that someone gave me that already have a auxiliary jack and sat inside a cardboard square. I stripped the speakers down to just the speakers and the cord. I then began stripping out the light sockets.
I disconnected the light housing from the post and cut off the light socket. I also kept and glued the switch back in place to make it look more realistic.
Step 3: Reassembly
I then taped off the end of the old light wires and reassembled the fixture.
Step 4: Feeding The Speaker Wire Through
I drilled a hole where I wanted the auxiliary to poke out and began feeding the speaker wire through the post. Luckily part of the post unscrews and it made it a lot easier.
Step 5: Adding Ipod Holder
(This is optional) I decided to add something to hold my ipod so it wasn't just hanging there when playing music. I hot glued an altoids tin to the pole and drilled a hole for the cord. I am using an iPod nano, so make something according to the size of your device.
Step 6: Attaching Speakers
Lastly I soldered the wires to the speakers and hot glued the speakers to the light housing. Now it is more modern and has different uses. The speakers aren't the best but I might build a better one in the future. If you have any other ideas like this you want me to build post in the comments. Rock on!