First, you need to have beat the Elite Four. (the Johto one.) Then, you will be granted access to Kanto; Kanto is what is on the other side of the gate that is blocked by the man! Okay, so after you get into Kanto, you basically travel around Kanto like you would in Red or Blue. I am not sure if you need to go through Rock Tunnel to get to Lavender Town. You may be able to come through from Fuschia, if you can get there.
You go to lavender town for Kanto and Goldenrod for Johto
Either go North from Lavender town or go East from Cerulean until you reach like the corner of the map. Then you have to surf in that water and go around until you reach it.
To upgrade your radio in Pokémon Gold, go to the radio tower in Lavender Town. There you will be given the radio card.
first go to lavender town then go into the radio staition the talk to the guy in the brown suit sittin down
Go to seven island then head north, bring level 100's.
You go though rock tunnel
The top of Lavender Town's tower
Go to lavender town go to the right and there it is.
fix the problems in the kanto region get the power plant working and then go to lavender town radio station.
Go to Lavender Town, the one with the Pokemon Tower. There should be a house where you can change your Pokemon's name. There should be a sign near the house saying Name-Rater. you go to Lavender Town and look for a house that says Name-Rater
there isn't a radio tower in firered and leafgreen, but in gold, silver, crystal, heartgold and soulsilver its in lavender town. You need to go through rock tunnel to get to lavender town. You wil need flash to get through rock tunnel
Go to the kanto region and go to lavender town radio station and you will get it there