90 mustang 5.0 problem

Hello, 90 mustang gt, penny fell in cigeratte lighter now no dash lights ,radio, ele. turn mirror switch , and NO Headlights fuses are fin? if I jump light switch fuses with power everything works but goes out when highbeam turned on but will go on when held in flash mod, blinkers work but again no power to the fuse in fusebox ? nothing looks burnt ,try to trace but not my best with elec. ,also no horn ,please HELP>>>>>>>>>>>

This is actually a pretty common nightmare in the fox bodies. It is usually caused by a short in the headlight switch. It will normally begin with the headlights and dash lights and can easily spread from there. Also make sure that you don't have anything shorted out behind the radio or instrument cluster. It's not fun, or easy to pull the cluster out, but if your switch is not the problem, then it is probably back there.

This is actually a pretty common nightmare in the fox bodies. It is usually caused by a short in the headlight switch. It will normally begin with the headlights and dash lights and can easily spread from there. Also make sure that you don't have anything shorted out behind the radio or instrument cluster. It's not fun, or easy to pull the cluster out, but if your switch is not the problem, then it is probably back there.
no power to switch ? someone said maybe fuseable link in the line ?

no power to switch ? someone said maybe fuseable link in the line ?
Still a problem with this could not find any wires burnt or anything blown fuses .

Still a problem with this could not find any wires burnt or anything blown fuses .
Unfortunately it is next to impossible to diagnose random electrical problems without physically getting into it and playing guess and test. Trust me, I've gone through this a few times with fox bodies. The best way is to get a voltage tester and just literally start going through everything one by one.