i read the big 3 thread but im having trouble getting it done. I've got an '01 pontiac grand am SE. the alts up top and easy to access, but the wires for it are underneath it and go through the engine like veins. Should i get out he swingset to lift out the engine just to replace a wire? I'm actually thinking about selling this car just to buy one that would be easier to perform the big 3 on lol. The current power wire coming off the alt looks like 16 gauge, would upgrading this be a crucial part in helping with my dimming problem?