[tripletdaddy]

No personal experience here. Hope someone else with a van that didn't erupt into flames can give you details of their experience and repair. I think all I can give you is repairman's common sense. Pull each of the sockets to look for problems. The dash one I'd expect grounding most likely possible, not the others. Perhaps the two wires to the sockets are shorting. Has this car been worked on so that the interior has been disturbed? Does the previous owner know of this problem and history? That's my best bet since all three are on separate fuses. With a test meter, see if the two contacts are still a short or open. Do they pop the fuse when the fuse is put in or when something is plugged into the socket? My next thought is to investigate if there is something that is common to all three fuse circuits, but not necessarily actually fed by all three fuses. Interestingly , a device with more than one section may receive power from more than one fuse. What I have unfortunately does not show the wiring circuits containing the sockets, so I can't look myself. That's weird all three are that way.