When going through the Team Rocket scenario in Soul Silver or Heart Gold in Goldenrod city, you can go into a tunnel and look for the man in a team rocket outfit. He will give you the uniform.
No you canot
Go to the Underground Tunnel in Goldenrod City. There is a Team Rocket Grunt there who will give you a uniform.
you can get it of a team rocket guy in heart gold/soul silver
you have to go to the underground where the dude takes pictures of you in a Team Rocket uniform. There will be a Team Rocket grunt who is looking for recruits. He will give you a uniform.
go to the little building near bills house and there will be a team rocket grunt in there and he will give you a uniform
When Team Rocket take over the Radio Tower, go underground and there will be a man. Talk to him and he will give you the Team Rocket uniform as a disguise.
Where the Pokemon Salon is, a newcoming Team Rocket Grunt will give you the Team Rocket uniform.
No
Goldenrod's Tunnel
go to the substation
To get the team rocket uniform, to get in the radio tower. all you have to do is talk to the rocket in the lobby of the tower, he wont let you in until you have a uniform. So go to the underground tunnel and near the photo studio there will be a rocket who will give you one!
u dont need a team rocket uniform just beat team rocket in goldenrod city