The Mini Keg Mp3 player is a great way to show off at the beach or a party. Costs about $60 to $80 and simple to make.
Step 1: Parts you will need
Class T- mini amp
12v rechargeable sealed lead acid battery
(1) Aux cable
(1) Aux cable extender
(2) bolts (any length you want)
(5) small screws
(6) medium drywall screws
(4) female spade clips
(1) 9" car radio back strap
(1) 6 1/2" MDF speaker ring (any wood ring will do)
(2) 6" or 6 1/2" MDF scraps to mount your items. (or your chose of wood)
(1) 6 1/2" Car Speaker
and of course the Mini Keg but this could work with any body style you wish.
Step 2: Prep the Keg
Once the mini keg is empty, drill a few holes on the face to make sure the air pressure is out of it. Then cut the face, making sure you have at least 1/4" of lip left over. Be careful with the sharp edges when you wash the inside and outside very thoroughly with soap and water. I used electrical tape to cover the edges while I worked on the inside so I don't hurt myself. Don't forget to take it off when you are about to close the boom box.
Trace the speaker on your MDF wood to make a speaker ring and give it a 1/4" to 1/2" thickness, this will keep the speaker in place. I used a plunge router drill to make the exact ring I wanted but it does not have to be perfect, it will not be visible.
I roughly sanded and added super glue on the ring and the keg 1/4" lip that we left for added support.
Put your speaker on and drill out the screw holes before hand because the MDF will crack if you add the screws with no pilot holes.