Faint sound from new audio system

[Reese Reissig]

Here's my setup. I have a 12v battery. The positive terminal is hooked up to a 25A fuse on 10 gauge wire. The fuse leads to a 25A switch. The switch goes to my amp power. The amp is grounded to the negative terminal on the battery. The amp has power. I have 2 16 gauge wires running to the positive and negative speaker power. for input I have an RCA to 3.5mm cable. I plugged my phone into this and I can faintly hear the audio by pressing my ear to the speaker all the way turned up. I connected a jumper wire from power to remote so the amp would turn on.

Here are my speakers

And here's my Amp

Here's the cable

Please help!

 

[totesmuhgoats]

Does this sound only happen when you are using the 3.5mm to RCA connector?

 

[Reese Reissig]

Does this sound only happen when you are using the 3.5mm to RCA connector?

This is the only way I am able to test it. So I'm not sure. It could either be a problem from the music source or the cable to the actual wiring to the speaker OR the speaker itself. Although I've tried two new speakers.