You have to go to the radio tower to answer the quiz to be able to challenge Whitney's gym.
you go to the Kanto radio tower in lavender town
Go to the radio tower and talk to different people
go the radio tower in goldenrod and take a quiz at the counter and she will give you a radio card
go to goldenrod city, and its to the left of the radio tower.
he never goes away
Go to the Radio Tower in Goldenrod City.
If your talkin about heart gold/ soul silver, you have to go to the radio tower in goldenrod city and take a quiz where Whitney is.
in front of diglet cave wake it up with the flute on the radio after you go to radio tower in kanto
listen to buena on the radio and go and tell her it at the radio tower
Go and talk to the gentleman at lavender town's radio tower.
the 3rd floor on the building your on where the directer is yea that`s not the radio tower so go to the 1st floor and exit then go to the radio tower then go to the 3rd floor. and there you have it!
you go to lavender town and go into the radio tower to gt the expn card to make it so your radio works in kanto