I have a short in my 1995 ls400. I hooked up the tool with the little bulb while the car is off and I removed all the fuses in the engine compartment and under the dash but the light still stays on so I don't know what to do now. I also replaced my altornator and now the radio turns on but no sound( if I hold down the scan button I can hear the beep but no music). The fuse for the radio in the engine compartment is good but I don't have a diagram for what fuse goes to what for under the steering wheel fuse box. Any input would be appreciated