You dont. After you go to the power plant the cop will get a call saying a shifty guy loitering aroung the cerulean gym. try to enter and a rocket grunt will bump into you. follow him to the big bridge and battle him and he will tell u where he hid the part in the gym
it's behind one of the tubes and then you go back and give it to the master dude
You do not receive the pokeflute in Pokemon heartgold. After you get the machine part in misty's gym and returned it to the powerplant you can get the kanto expansion card for your pokegear radio at laventer town radio tower. The pokeflute station is near the top
go to cerulean city and go up then go to the right until you meet misty but you have to do battles along the way
In cerulean cities gym you must beat the leader misty to get the cascade badge.
You find her at the Cerulean Cape after you have defeated/caught Suicune from 4:00 PM to 5:59 PM.
misty will be a gym leader in HeartGold and SoulSilver
she is at cerulean cape
Where you find Misty.
Misty is somewhere on Route 25.
Misty is the gym leader of Cerulean City.
I don't have heart gold but its Vermilloin city next gym leader is Lt.Surge he has electric Pokemon No,Brock is next,ok?
cerulean city kanto.hope it helps!
it is in misty's gym press a on the life savers
Travel to the end of Route 25 and she will be standing there.
Beat the rest of the gym leaders first.
The gym leader after Misty is Lt. Surge. He is the gym leader of Vermilion City, specializing in Electric-type Pokemon.
USE YOUR MAP and it is near the water gym(gym leader misty)