Hello, I have my phone plugged into my receiver/amp and I'm only getting sound from one speaker. The problem only started when I changed out the speakers for a couple more powerful ones. Everything is connected in the same way. Same phone, cord, receiver, the only thing different is the speakers. But now only one speaker is playing. It works fine with the old speakers, so I don't think the problem lies in the receiver or the cord I'm using. Has anyone seen this problem before? I hope it is easily fixable. Any help is appreciated!