Hey all, this has to do with the 1986 M1009 CUCV. ive noticed that when i start the truck all the lights turn off except the Gen 2 light stays on fully bright. as soon as i rev the truck at all, the light goes off. also i have an amp and 10in sub installed, and when im playin the stereo at night i notice the gen 2 light is on but very very dim. and it gets brighter when the base hits. my first idea is to that the second alternator is dying, but um... noobie question here, which one of the two is the second alternator? i was thinking about having a starting/charging test done, but does anyone know if they would charge extra to test the second alternator?