[Truck]

Ok, just back from under the hood of the beast. Near the power distribution box, there are a few connectors. One with about 8, one with 4 and one with 5 (the physically largest one.) The red wire is a bigger gauge than the others. On the female end, the wire has cracked insulation, and the wire is broken. Apparently, it's been in bad shape for sometime, but I don't know how long it's been completely gone. I'm going to re-wire the connection, anyone have any idea what this wire does?

I suppose it's a 12v supply to something, but I have no identifiers other than it's red and larger gauge (numerically smaller) than the other ones in it's connection. It's the 5-wire plug behind the battery, 'downstream' from the power distribution box.