Just today I started to notice something. When my stereo was on, and everytime I pressed on the gas, there was this odd whining sound that I heard. I thought maybe it was my ground, but I tighten the screws, and still have that sound. So, what gives? Bad cables?

 

Thats alternator wine. You have to rewire or relocated your power wire. It can also be the RCA cables being too close to the power wire (from battery).

 

You couls also get a noise reducer. It plugs in-line with the RCA cables. It decreases the volume so you'll have to crank it up a bit more

 

make sure your rca cables and power cables are running down opposite sides of the car