Alright y’all I have a aftermarket system with head unit with sound stream amp and 1 12 inch sub along with the shitty bose amp that came with truck that you can’t replace in my 2015 Silverado for 4 years now and ran good and all of a sudden I have major static and engine noises and weird noises in all speakers. Replaced ground and power cable to 0 gauge and just replaced location of ground. Replaced RCAs with cheap rcas but just bought professional rcas that should be in the mail tmr to try. I have no idea and about to sell the truck bc I can’t and have no idea what else to try. Send help willing to post cell to talk to somebody I’m desperate!!!