SJB 15amp Subwoofer Fuse

[05MountainGoat]

Decided to make an account to see if anyone knows anything about the 15amp subwoofer fuse in the SJB on an 05 Ranger. My truck came with no powered door options, no rear speakers, no center console, the base stereo, and nothing else to indicate my truck should have the pins present for a subwoofer fuse.

Despite this, there are pins in this fuse slot and a 15 amp fuse in good shape resting there. I plan on leaving the fuse there, it's doing no harm.

I was just curious if anyone knew whether the subwoofer fuse powers anything else in the truck? Or had any insight into what this might be doing in an ex fleet truck. Tracked down the wires for my hazard beacon and aftermarket theft alarm and they don't tie in at the SJB.

05 Ranger Edge

 

[05MountainGoat]

Fuse 12 for center console subwoofer with pos and neg pins in a sjb on a truck without a center console or subwoofer from the factory

 

[05MountainGoat]

Showing pins

 

[RonD]

As far as I know there were only 2 SJB models in Rangers, 2004-2011
With keyless entry and without keyless entry

So unless it had to do with keyless entry all other fuse connections should be there
But most likely no wiring out of the SJB if option wasn't installed