Ok, so I bought a model 2 Genesis off a friend of mine yesterday for about 30 bucks. The only game it came with was Sonic 2. Upon plugging it in at home, I realized that the game would often have static noises coming in and out sometimes. Then after a while, the audio just hung. It would play when paused too. Now, the gameplay itself is fine, all the levels work perfectly. Now on the Genesis 6-pak, the menu music would get all wonky and sped-up sounding and then the music would lock up again. Is this remedied by cleaning, or is it something far worse?
Edit: Upon further investigation, there appears to be crackling audio, and then everything seems quieter than usual. The power port on the back appears to be finicky also. The power indicator light sometimes seems dim, and the console won't power on. I have to jiggle it a bit to get it to get it to turn on. So is everything going wrong due to it not getting enough juice? I hope I didn't pay 30 dollars for a pile of rubbish and a game I already own..