New member and aspiring basshead here. I have a system planned out for my 04 silverado. I haven't done the math and I'm pretty doubtful the 250A alternator I have won't cut it for the 3920 RMS the system will be pulling. I'm considering doing a dual alternator setup including the original alternator, but the wiring harness is confusing me. I understand that the second alternator needs to be excited from an ignition source (brown wire), but I'm not sure what the gray wire is for. If I could get some help on whether or not this wire is necessary for my aux. alternator it would be appreciated.
Dual alternator setup
in MechMan Alternators and 12v Accessories
Posted
New member and aspiring basshead here. I have a system planned out for my 04 silverado. I haven't done the math and I'm pretty doubtful the 250A alternator I have won't cut it for the 3920 RMS the system will be pulling. I'm considering doing a dual alternator setup including the original alternator, but the wiring harness is confusing me. I understand that the second alternator needs to be excited from an ignition source (brown wire), but I'm not sure what the gray wire is for. If I could get some help on whether or not this wire is necessary for my aux. alternator it would be appreciated.