Hello, I bought a truck about a year ago and the owner had a system installed. toyota double din amp is a 4/3/2 channel power amp, KAC-8406, KENWOOD, max 900w Sub is a sound ordinance ( can get specifics tomorrow on sub and speakers, I have all the paper work).
Symptoms: Head unit powers on with no issues - never cuts off When I turn on head unit i hear a slight pop(same when I turn it off), then after a few seconds the music plays (sometimes)... My sound will randomly stop working or not work at all when the car is on. This happens while sitting perfectly still, it will come on for 15 seconds or so and cut off. Other times it will work for a few minutes, or more often now it wont work at all. When the sound is not coming out, I can hear the sub beating, but thats it. It is like the rest of the speakers are just off and all that is on is the sub. Sometimes when the sound is not working i can turn the head unit off and then back on, which rarely makes the sound work for a few seconds then cuts off.
Again this is not impacted by movement/driving/sitting still. It happens at all points completely random.