Hi all,
2000 Lesabre lost power to driver door switches.
They illuminate but windows, locks, & mirrors don't respond to switch. Other doors work fine.
No bad fuses under seat etc.
Also, the radio would light up and work fine, then lose sound for a while ( sometimes days) then sound would come back. That'* been a thing for a few years but never seemed to affect anything else.
Then about 3 months ago the license plate lights quit. Soon after the reverse lights quit!
The running lights that are in the trunk lid won't work either. Still have brake/blinker lights that work, the ones in back outside the trunk deck. The brake light in rear window works too.
What the heck? Anyone have similar issues and fixed 'em I'd love to hear how!
Thanks!

I'd start by cleaning all the grounds. For door look at the loom between the pillar and door for broken wires.

I'd suspect a bad switch assembly, but I'd start with carfixer007'* advice first ^^^^^^^

No luck with wire loom from door, did find a couple of wires with tiny spots of exposed copper. Checked them for burns and breakage, rewrapped and still no windows locks or mirror control from drivers door.
I've heard there is a group of wires under seat that can cause this that are tied together in a ( I think this is what they called it) Scotch lock/tie?
Anyone heard of this? Is it under the varpet as well, do I have to pull the seat to get to it?
Thanks for your input!