When l play my audio, turn the volume up above 36 to the max. To the music started to sound distorted. It dont matter if l do any adjustments to the treble or bass neg or pos. It still sound like static. It more on the passenger side.
Sounds like your speakers are shot and need replaced.
You blew out one or more speakers.
Playing music at full volume will do that unless you spend a lot for quality speakers.
You might also want to put some money aside for hearing aids. You’re going to need them.
And overdriving the amp can blow out even good speakers’ tweeters because of the high frequency distortion.