I think that, even on a '97, there's a pass thru grommet on the floor near the center, under the heater box that with the proper amount of coaxing and cuss words, a 0 gage cable will pass. A bit of RTV will help keep things dry when the wire is through. I mounted my fuse holder to the strut tower, right next to the fuse block. I piggy backed on the bolt that the positive battery cable attaches to.