so i installed new speakers to an amp(4channels). i already had it with 2 speakers and a sub, i removed the sub and just wanted to install 2 speakers instead but while doing that my ground connector came loose from the am= i stuck it back in and the sound went weird basically thought something got fried like the speaker since i connected a new one instead of the sub and had still a place for 1 more since the sub took 2 channels . that ground came out and i stuck it back and secured it tightly i checked everything and basically it works like this: i can run 2 of the speakers either front or rear normally with either of them connected to every speaker line i want it to be RL +- RR +- FL +- FR +- all of them work and either RCA cables i set work for both the 2 for front and 2 for rear but the sound start when i try to connect anothr rca more then 2.. basically starting to use 3rd and 4th channels
dosnt matter what combination i try the 2 channels work wont matter what rca output(which channels i choose from the line in connections) i choose and which cables or speakers i connect to wherever its just gonna start making buzzing/humming noise together with the new 3rd/4th speaker when i connect their rca to channel 3/4 and i believe its just technically i hot wired the amp but it was already connected i just wanna know how can i fix the amp or try my solution for now all i did was make a new ground hole and drill it and connect it to chasis.
MY AMP is SP audio v15
dosnt matter what combination i try the 2 channels work wont matter what rca output(which channels i choose from the line in connections) i choose and which cables or speakers i connect to wherever its just gonna start making buzzing/humming noise together with the new 3rd/4th speaker when i connect their rca to channel 3/4 and i believe its just technically i hot wired the amp but it was already connected i just wanna know how can i fix the amp or try my solution for now all i did was make a new ground hole and drill it and connect it to chasis.
MY AMP is SP audio v15
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