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Super Moderator
1966 Crown Coupe, 2016 200 S AWD, 1962 Lark Daytona V8.
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23,867 Posts
Is there 12 volts at either end of fuse #5 in the Junction Block (JB)? If not, you will have to work back towards the underhood PDC and battery feed (A7).
Do you still have brake lights?
The fuse #5 output is a Pink or Pink/stripe wire. Somewhere there is a short to ground.

 

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Super Moderator
1966 Crown Coupe, 2016 200 S AWD, 1962 Lark Daytona V8.
Joined
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23,867 Posts
The PDC (power distribution center) is the fuse/relay box under the hood. The JB (junction block) is the fuse/relay box in the dash. The JB also includes the BCM (body control module) on this car.
The short-to-ground may be still in the interior lighting circuit. Since the overhead map lights aren't working, there may be a problem in that circuit. Follow the Pink wire up the 'A'-pillar and along the windshield header to the rearview mirror. Do the visor vanity mirror illumination lights work?
The burned A/C control wire (?) will also have to be addressed. It almost sounds like someone may have added that wire.
No doubt that you will need wiring diagrams with color codes and harness routing information if you are going to be doing this level of diagnosis and service. A factory service manual is the way to go. A large local library may have factory service manuals or a subscription to Alldata or you can purchase a set for the car. Consider them as a tool purchase. They can pay for themselves in a short amount of time:

http://www.amazon.com/Convertible-Including-Powertrain-Transmission-JX-Platform/dp/B002ZNDS0E
 

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Super Moderator
1966 Crown Coupe, 2016 200 S AWD, 1962 Lark Daytona V8.
Joined
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23,867 Posts
If everything is plugged in connector-wise to the rear view mirror and you have 12 volts at the Pink wire to it, then the courtesy/map bulbs under the clear lenses may be blown. They should gently pry off.
I'm glad that you found that 20 amp fuse blown in the PDC as that powers your rear brake lights also.
 
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