cluster lights

in my 92 svx whenever i turn the wheel all the lights along the bottom of the instrument cluster light up. also the wheel seems hard to turn sometimes. another problem i have is when i push on the brakes, turn on the fog lights, the heated mirrors, the rear defroster, or the heater. the radio either starts making funny noises or shuts off completely. i'm lost any help with this would be greatly apprectiated. i've read here that some people have had the lights come on when their alternator is going out, could this be the problem? and if so would it cause the other problems.