Hello, have a 2013 Edge that has a battery drain. When the car is sitting in the driveway, turned off, no key in ignition, you get these periodic subwoofer thumps. They're loud enough to hear in the house. It only does this when the battery starts to get low. I pulled the radio and amp fuses so waiting to see how that goes. My question is how do I de tr ermine e if it's the radio or amp? If the car has no issues for a couple days, I'm going to replace the fuses and unplug the amp. If it co.es back I guess it's the radio. ??? Has anyone had a similar issue?
Thanks