2015 Chevy Tahoe Ltz buzzing and popping noise after installing aftermarket speakers

[Gadgetsystem]

Has anyone on here installed audio control lc7i? I have 4 aftermarket door speakers 2 8 in prv in the front and 2 6.5 prv speakers in the rear with 2 12 subs. Seem like the door speakers have a lot of noise going through them and when I shut the truck off and everything powers down all 4 door speakers pop loud. Pretty sure this is also why the 6.5 blew…It seems like it might be a ground issue but I can’t find any other ground spots in the rear that don’t require drilling or sending a self tapper through. Any help or advise will greatly be appreciated thanks.

 

[Joseph Garcia]

Welcome to the Forum from NH.

Lots of knowledgeable folks here who freely share their knowledge, experiences, and perspectives. Knowledge is power.

I hope that you will become a participating member in the Forum's discussions.

Pics of the truck, please. If we can't see it, it does not exist.

Tell us more about your audio system. Bose or non-Bose? What power amp(s) are you using? Specifically, How did you connect the head unit to the LC? Specifically, how did you connect the LC to the power amp(s)?

How is the LC powered?

How are your two 12" subs configured and powered?

You referred to the popping noise as potentially existing before the LC was installed. Please provide more details on what was going on before the LC installation?