Originally Posted by EWC88
Anything yet? Sorry to bother ya..
Hope I can figure this out though cause I don't know how many more warngins I'll be luck to get
Well, Just following along here...
First, if I understand this correctly, the Turn Signal/Hazzard fuse blew shortly after you replaced it? Ok, that, in and of itself, means you have a wiring problem somewhere in there that you need to start tracing down. This isn't going to be fun, but, I'm guessing it'* in the area where the fellow doing your stereo was working. If all of the turn signal lights are down, then the problem must be in the wiring after the fuse block and BEFORE the turn signal switch in the steering column. You are looking for a short circuit, possibly where something got tapped into doing the stereo work. It could also be a pinched wire somewhere in the chassis, but I'm betting you will find it under the dash near the steering column.
Second, I'll assume for a moment that the driver'* side low beam is just burnt out and focus on the high beams. They are operated on a relay, which is likely fine, but the control for that relay also comed up to the steering column. (You pull the handle and hear the "click" of the switch changing from high beams to low beams... but the switch is actually on the bottom part of the steering column, above your feet.) I don't know where it gets power from, it might even draw from the same circuit that the turns signals are getting juice from.
So, what I would do is disconnect the harness connectors at the steering column and start tracing down the wires looking for the short. You are going to need the wiring diagrams for the car...which means getting a service manual for your car and tracing down the circuits involved.
My hunch is something got pinched when the stereo head unit was put in. It may have taken a while for the insulation around the wire to get rubbed off, but it'* clear you have a hard short that'* popping the fuse, and you gotta find it.
Some other tests to narrow the problem down and prove what works and by how much... Make sure the hazards and turn signal switches are off. Put a fuse in the block to replace the blown one. Without turning the car on or touching any switches, does this fuse blow too?
If it does, then the problem is definately in the wiring between the block and the steerng column switches. Now, remove the turn signal flasher relay. and repeat the test again. If the fuse blows again, the short is between the fuse block and the flasher relay and the wiring betwen the flasher relay and the column is OK. If it doesn't blow, then the problem is between the flasher relay and the steering column.
This is the "Divide and Conquer" approach to troubleshooting wiring. By breaking down the circuit from a known good point (The fuse block in this case) you can isolate where the shorted out wire is.