Hi,
People do different things - either drill a hole in the body and use an aerial tube, or curl up the aerial wire and tuck it away inside, or tape down the aerial wire along the chassis, or bend an aerial tube and tape that down inside the buggy.
It depends on the quality of your radio gear. I go half way between the two and use a short aerial tube that sticks out to the height of the buggy, so I can be certain of getting good enough reception. There are also new receivers that have a built in antenna. They are more expensive, but there's no bother with the aerial wire.
Hope this helps and we look forward to seeing you track side!
