Interior light not working, I need some help please.
 

I mean the two lights above the driver and the passenger in the headliner, these two lights were working OK but after I got the car back from the body shop they stopped working, I know the body shop has removed both doors off and I'm not sure if they let any wire disconnected, the problem is I have no idea where these wires would route. I removed both lights and I can see that the driver side has two single wires (brown and grey) and the passenger has two double wires of the same color, but I don't know where the wires go. The car is a 1976 911S.

Did you check the fuse? Also check the door jam switches. They may have broken the wires on them if they removed them.

Fuse is OK, I dont think its the door jam switch as they dont light at all in all three positions.

Passenger side in the trunk area above the glove box is where the wires connect. Also connects to trunk lamp there. Likely need to remove blower motor cover in the trunk to access them.
If glove box light works, there is power in the circuit.
Black and brown wires with male spades connect to the 2 wires going up in the left windshield frame.

On my 1985 911, the clock, glove box and trunk lights are all on the same circuit as the interior lights. If any of those others work, your fuse is ok.

There is a weird little white connector to the fuse that is easy to pull apart to kill those circuits for maintenance work if the doors or the trunk is open. See it yah is working.
I have a thread on the tech site with pictures and better description. Search for that.

That small connector doesn’t exist on a 76.
Directly wired to the fuse.

Are your lights 3 position types? on all the time, on with door open and just off?

remove the rubber boots on the door switches and see if the lights come on, the boots get dried out and hold the switches in the "open" position not allowing the switch to turn the light on despite the door being open... some new boots will correct this as the rubber is nice and flexible

...almost sure is the door switch. Happened to me! start by following ryans65 advise. The door post switches are around $7.50 a piece.

Jose

Had the same issue with my 1975 911S. Pulled the door switches, a spray with Deoxit and working perfectly. Contacts probably not seen the day of light in 45 years.

Unscrew the switches from the jamb and clean the female threaded area on the jamb.
They may have painted the threads and now the switches aren't grounding.

Careful, don't let the wire fall back into the door jamb hole. IIRC, there is not a lot of slack...

The 3 position on my glove box light not working properly.. problem position is the where the light should come on when the glove box door is opened and closed.

Depending on the year there is a wire to that glove box switch that often gets unknowingly pulled or snipped by people doing radio installs. Might check that first.