These frequencies were in the radio from last years
Road Atlanta Grand Am. Most still worked at the Roar.
Racing Electronics.com has a booth in the Fan zone at Daytona.
He should have an updated list at the 24.
http://www.racingtvguide.com/frequencies.php?sr=GrandAm
As far as a radio. Just go with a $99 Uniden. Check the Radio
Shack website. Call your local location to make sure they have in stock.
a good pair of sony earbuds for $15 and a pair of headphones to
cover the ears and you are good to go.
If your car radio has an mp3 jack, that cord will fit the scanner
and voila, scanner on the car stereo. Really nice if its raining and you need a break from the elements. Volume goes as loud as your car stereo.
Really nice if you can park seeing the on track action.