Stock radio wiring on 4 channel amp

Hello everyone,

I have a 4 channel amp connected to my stock radio. The problem I have is when I turn the amp off or turn down all the settings on the amp I can still hear music coming out the speaker without the amp on? I checked the wire on the harness and they are all connected correctly. Just can’t find why the speakers are still playing music if they are connected with the amp?

Thanks for the help

 

Did you add something to your stock system that required the amp?

 

what amp model, and how is it connected?

 

Did you splice into the factory harness, run the speaker output wires to the amp and then new wires from amp to the 4 speakers AND two tweeters in the dash?

 

https://www.tacomaworld.com/threads/wanting-to-add-a-amplifier-to-non-jbl-system.760770/

 

https://www.tacomaworld.com/threads/2020-factory-radio-add-amp-adapter.652643/