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I’m sure you’re all too familiar with that irritating buzzing noise that comes through your speakers every time you receive or place a call from your iPhone, fret not! You can put an end to this buzzing with a Red Bull can and a bit of time!

The website where the directions of this DIY project were originally posted warns that while this “shield” blocks speaker interference that there is a miniscule chance that it will reduce your iPhone’s reception quality (nothing permanent of course.)

Directions (copied from creator’s website) – Project time: 15-30 minutes

Parts you will need to complete the project.

1. iPhone (of course)

2. iPhone Dock

3. Red Bull. Drink it first. Sugar-free is better in taste and less sticky for the remainder of the project. But if you like regular better that’s fine in either case just rinse the can out well before starting.

4. Double stick tape. I used carpet tape for superior thickness to strength ratio.

Tools you will find helpful.

1. VERY sharp scissors. Don’t use scissors that you care too much about as you’ll be using them to cut the Red Bull can.
   

2. A carpenter knife. (Optional. I find better control. If your not a pro knife user don’t use this method. i am not responsible for injury or death as of this disclaimer).
   

3. A metal straight edge of some kind. (optional)
   

4. Patience.

Quick Directions.

I may or may not post images if build another one.

1. Cut top and bottom off the Red Bull can. This can be rough. You can clean it up later with a scissors or straight edge and knife.
   

2. Un-curl the can by gently forming it in the opposite direction. I did this by placing rolling it the opposite way on the edge of the desk in half-inch sections. Be patient and gentle.
   

3. Lay the can across the the back of the dock and mark the cuts for trimming then cut down the can and notch spot for the dock connector and AV Output.
   

4. Using a scissors (or optional knife) cut out your can as you marked it. I found using a knife caused the edges to roll back and not be razor sharp.
   

5. Gently bend and shape your final shield to hold the radius of the back of the dock.
   

6. Place the double stick tape across the bottom and adhere it to your dock.

That’s it. Done. Congratulations of your new iPhone Red Bull anti-interference shield.

[Gizmodo via Behrens Group]