Beside the Name Rating tent (Which is beside the Goldenrod city Pokemon Gym), there is a subway thing. Go in it and there should be stairs. Go down the stairs and there should be another flight of stairs (Lol). Go down it and there you are! Goldenrod Tunnels!
Hope this help XD
It has two entrances; one is secret. It's in the tallest building in the town, and I thing you've got to defeat team rocket to get to the entrance.
It should be near the radio tower.
There isn't one in Goldenrod, it is actually in Ecruteak City.
In goldenrod city, go to the underground tunnel. Theres a guy dressed up as a grunt and if you walk in front of him, he'll talk to you and dress you up as a grunt. when you go to the radio station, lucas busts your cover, so make the most of the costume while you have it! :D
You have to defeat the first 7 Gym Leaders in Johto, you'll receive a call on your Pokégear after you do all of that saying there's an issue with the radio waves. You head to the Goldenrod City Radio Tower and you'll find that as soon as you go in there, it's crawling with Team Rocket Grunts. If you talk to the Grunt blocking the staircase, he'll tell you he's under orders to not allow anyone up the stairs unless they're wearing their uniform so you have to go into the Underground Tunnel which is nearby and head up to the north part of the Underground Tunnel and talk to the Team Rocket Grunt there. He'll put you inside a Team Rocket uniform however this is only a temporary thing.
The Team Rocket uniform that your Player Character temporarily wears is only available in Pokémon HeartGold and SoulSilver. You will need to defeat 7 out of the 8 Gym Leaders in the Johto region and then head to the Radio Tower in Goldenrod City and talk to the Team Rocket Grunt that is blocking your way upstairs. Now you can go into the Underground Tunnel via the North entrance in Goldenrod City in order to get put into a Team Rocket uniform.
You have to get the Radio Upgrade for the PokéGear in the Radio Tower before you can go into the Goldenrod City Gym.
In Goldenrod city
The Goldenrod City tunnel in Pokemon HeartGold is in the place where you got your Team Rocket uniform from.go in all of the houses in goldenrod and then you will find it (it looks like a very small house
In Goldenrod city and in the kanto region, outside of saffron city
Yeh he is not there for me too.
Next to the name raters house.
It's in the underground tunnel in Goldenrod city
It is in the underground tunnel
In Pokemon Silver, there are two places where a Pokemon may be taken to get groomed. The Haircut Brothers are the main groomers in the game, located in Goldenrod Tunnel, but it is also possible to have Daisy Oak in Pallet Town groom a Pokemon.
Easy! Goldenrod Tunnel, in the north west of Goldenrod City.
in front of bill's moms house and beside the purpule tent at the top of the city(goldenrod)
In the tunnel in goldenrod city in heart gold
get a team rocket uniform in the tunnel of goldenrod city do all this stuff in the radio station then go to the tunnel and back again (you have to do all this stuff in the two buildings).