My dome light doesn't come on and my radio does not shut off when I open my driver's door but they work fine with the passenger's door, what causes this?

Have you tried a little squirt of wd40 or graphite in the door jam switch and then hand manipulate it a few times?

it sounds like a broken wire in the passenger door.

Glad you solved it.

Never rely on the door switch to shut off the lights.
That is always an extremely unreliable system on any car.
Whenever you shut a car off, turn off everything. That includes radio, AC, fan, etc. Otherwise you are putting a great strain on your battery when you next try to start it.

This problem is caused by your drivers door dome light plunger being faulted.It is an easy fix you can do by yourself and the part costs $49 us dollars.Please get back to me with any questions.....thanks!!!

Check inside the drivers and passenger side door jam for the little push in type switch. 9x out of 10 one or the other will be causing the short to the dome fuse. These little **** get rusty and also get alot of wear and tear from the door opening and shutting over and over. These switchs are what causes your dome light to come on when you open your door and or likewise they shut your dome light off when you shut you door. A very good way to test to see if one of these little switchs is the couprate is to take and hook up a voltage light into the negative side battery post after you disconnect the battery negative line.. If your voltage light is on than that would mean that you have a short somewhere in your system. Now, since you already know that you are blowing the dome fuse then your already halfway there. With the light on your votage light still on indicatin a short, unscrew the little switch on the door jam and disconnect the power wire from it. Check to see if the light on your voltage light is still indicating a short, if not then you can be sure that the door jam was the coulprete. Hope this is of help.

probably its one of the door switches thats defect and wire grounds intermittently and dome light stays on!

Not 100 % sure on the Mustang, but on F150 this is 1 of 2 places.

First check is if the dome light comes on. If not, check the door switch, and the wiring between the door and the A pillar for a broken wire ( F150 this is a Black w/ yellow wire ).

Second, in the driver's side door sill, under the trim plate, there is a splice in there, that is only in tape. The F150s ( 04-08 ) can have water in the sill with the splice, and it freezes and stops working.
A lot of wires to look through, but you find something similar.
The door sill usually has other issues with it, apart from the radio saying on.

Start with looking through the door to A pillar harness, if your adio stays on, and you don't have dome lamps

Since the passenger door doesn't get used as much as the drivers door, check to see if the switch is not just stuck. It is a little button with a spring that opens up and turns the light on. It is located on the hinge area of the door and when the door closes it shuts off the switch, if it is not stuck then I would suspect said switch.

my dome light wont turn on at all and i dont know where the fuse is iv checked all my fuses and there fine could it be a capasiter