Need help on Level 4 Extreme Wheels

[gcwii]

Hi, I'm in the Extreme Wheels Garage - Level 4 and I'm on the part of the mission which says find the warehouse and help mya. I have been wondering around the garage for ages and have been through doors, i'm obviously missing something, can anyone tell me where to find the warehouse??

Thanks in advance.

 

[fender13]

when you are outside kill every one, then on the left there it a door that takes you to a car wash and turn the wash on. And you ride the truck through the car was and there are enimies that pop out and stuff, kill them. then it unlocks the warehouse door on the other side. hope this helped.