IslandTaigah
New member
We are installing a Kenwood deck + Kenwood amp + 12" JL sub. Speakers are still stock. Everything is hooked up & works great. The only issue is feedback from the sub. It's subtle when the car's off, but much louder when its started up. Took it to our local audio shop & they suspected something with the ground & tried fixing it to no avail. The other suggestion is that the factory amp is interfering. How do we get around that?