You can find it in goldenrod city. There is a quiz on the right of the counter in 1st floor and if you answer them, you get the radio card.
At the Radio Tower.
You must obtain a radio card from the receptionist at the radio tower
by getting past him
I'm sorry, but you can't go up in the Radio tower in Silver/Gold/Crystal or SoulSilver/HeartGold.
At the radio tower after you save it from team rocket.
lavender town radio tower
In Gold, Silver and Crystal, the Ghost Tower has been transformed into Kanto's Radio Tower and you will no longer be able to explore it.
I can't remember, but i think you have to go to the Radio Tower in Goldenrod City
In Pokemon Liquid Crystal, you can obtain the Clear Bell by completing the Goldenrod Radio Tower mission that involves dealing with Team Rocket members. Once you have cleared the Radio Tower, you will receive the Clear Bell as a reward, which you can use to encounter Suicune in the Tin Tower.
You need to get the radio card from the radio tower (after returning the missing part to the power plant), once you have this walk up to any snorlax and play the radio (found in the pokegear) it will play the pokeflute through the radio and wake up the snorlax then you can go to cinnabar island, if that is where you are going.
if ur talking about the radio tower i think it is yes,yes,no,yes,no
After you do the team rocket thing the guy gives it to you at the top of the radio tower.