Dome light...
The extreme case is melted wiring under the dash. Our 74 Satellite had the typical issues with the 35 year old bulkhead connector. The wiring to and from the ammeter overheated from oxidation of the connectors and fused to the dash and dome light wiring under the dash. Both sets of lighting backfed and would stay on.
Always a good practice on these older Mopars to check your wiring to your bulkhead connector and look for any distorted or melted insulation.
May not be the problem in your case but still a good idea to check it out and look at your wiring. The donor car we got with the 74 was also melted. It was a lot of work but we fixed the wiring and it's back on the road. Better to isolate it before it becomes a huge issue. There's lots of information on the web on how to modify the wiring to avoid it happening again.
The extreme case is melted wiring under the dash. Our 74 Satellite had the typical issues with the 35 year old bulkhead connector. The wiring to and from the ammeter overheated from oxidation of the connectors and fused to the dash and dome light wiring under the dash. Both sets of lighting backfed and would stay on.
Always a good practice on these older Mopars to check your wiring to your bulkhead connector and look for any distorted or melted insulation.
May not be the problem in your case but still a good idea to check it out and look at your wiring. The donor car we got with the 74 was also melted. It was a lot of work but we fixed the wiring and it's back on the road. Better to isolate it before it becomes a huge issue. There's lots of information on the web on how to modify the wiring to avoid it happening again.