You just go in the warehouse after looker finds you
How Do You Get Into The Team Galactic's Base In Pokemon Platinum?
You use cut on the tree and just walk in
Get galactic key
You get in there by defeating either Crasher Wake or Candice. After that, use the key Looker recovers from the galactic goon in the warehouse. Once you get the Galactic key, you can use it to get into team galactic's base in Vielstone.
I have 7 bages there are to many rooms tell me where to go
You need to have the power cut you go to the team galactic building then cut down the trees then go get a bike