In my home i have multiple recievers, multiple aux cables, multiple speakers and multiple recordplayers. but whatever combination i try, there is only sound coming from the right speaker. i had a regulat setup of a reciever, aux cable, smartphone, speaker cables and 2 speakers. i swapped every part until nothing was the same and the problem persisted. i don't know what the hell is going on but i double checked every element except the wiring of my house. anyone here have a clue?