i have an 83 xjs and since i have gotten it the drivers side fuse box blowes fuses once in a while for the guages and i have 20amp in there now and will last a few days ,the blower motor fuse is heating up so bad it is melting the plastic around the fuse clips,i think the problems is the fuse box so io was thinking about replaceing it with the new style plug in fuse panel has anyone done this before?