Originally Posted by genges666
Hi, I recently installed my BTA8100FHC with the FAST system and when I reconnected the battery, with the car still off I noticed a hiss sound coming from my front right speaker. When I turned the car on I noticed even with the radio off or on the sub was pulsing on its own. The noise from the pulsing increased as I turned up the gain.
I checked all my connections into the factory HU and my ground was good. No matter what I tried I couldn't get those issues to go away. Please Help!
From everything you've described, it sounds like a ground issue. How did you verify your ground? Examine all of your signal connections as well.