"They enter people's properties and use the area as a toilet. There's evidence in trees and bushes below our property - toilet paper, soggy bundles, cigarette butts and ends of joints.
"You start to question your security when you see young guys running around entering properties. Often they're looking for a hose to fill their bongs with but they could be looking to break in or suss a property out."
Residents contacted Spreydon-Cashmere Community Board chairwoman Karolin Potter in despair last month after making constant calls to police about the disruptive noise.
Potter told a city council meeting last Thursday it had been happening for months.
"We've got a real problem up there with people in cars smoking obscure substances and playing dub music at top [volume] and the local residents calling the police most nights. Last night they were there until 3am."
She told the Southern View newspaper it was happening five nights out of seven and sometimes during the day as well.
"I've been up there and I parked next to a boy smoking a bong. He didn't care."
The board is trying to organise a meeting with residents, council staff and police to come up with solutions.
"We really wish we could resolve [this] issue. We're trying to get a meeting between traffic engineeers, police and us. It's very difficult to get police to come to meetings," Potter told city councillors.
Residents say the music has a deep, thumping bass, which they can hear while watching television.
