So I've got this LG stereo that my grandpa gave me and it works fine except the fact that the right speaker outputs don't work, I hook them up the way it's supposed to and it'll only give a small hiss and it pisses me off. I currently have all my speakers hooked up to my front left and rear left speaker output and I believe I'm losing a lot of power due to this. I also think this stresses my battery because I can't listen to 1 song with the truck turned of because it'll discharge my battery. I have hooked up on my front left output like 6 tweeters and 2 coaxial speakers and I have 2 factory speakers hooked up to my rear left output. Does this cause problems and can I repair this my self? I have some knowledge of electronics, basic things like how to check and replace capacitors, resistors, diodes etc.