My door locks, radio, and trunk don't work after the windows were left open during a rain storm, what could it be?

Is this an aftermarket key opener. ? The brain box for this unit is some times mounted behind the left kicker panel by the left foot of the driver. And they get wet from foot water ie snow. Rain. The yr of ur car sounds like this unit could be water damaged. Have a look. Is u see green stuff allover the contracts thats ur issue. As well some times older cars remote fob controller is not isolated from other sigs. Ur truck does it only pop open when parked in one location ie home or work u might be picking up a similar radio req as ur button for truck lid as they have different radio freqs to control different things

The tail light has a leak in it someplace. it fill up and then drains, check the gaskets carefully and look to see if any drain holes are plugged

electrical test at driver switch with test light. If all good there ,take off driver door panel and test at the window motor itself. if good motor defect

the drivers door switch is also a door module and ever thing from for the door goes threw it

Did the problem come on suddenly or was some previous action or work done......

YOU HAVE GOTTEN WATTER IN THE DRIVERS DOOR IN THERE IS A CONTROLLER FOR ALL OF THAT THAT HAS MOISTURE IN IT,

{: ) That's too bad. The driver door module could have been internally shorted out. It's normally not serviceable. A new driver door switch or module will need to be programmed to your vehicle before it functions properly.

The main amp box is under the passenger seat so it might have gotten wet.
try drying amp.
disconnect battery for about an hour
(before you disconnect the battery make sure you have the lock code to your stereo some need.
re connect battery and stereo sould play fine
if not then you may have a bad amp or speakers

whats your weather stripping look like? dry rot? smashed down? toren? or may be comming thru back window? hole in trunk? thats all i can think of. happy hunting.

First check the power window fuse,
1. Remove the door panel for the affected window.
2. Locate and remove the bolts holding the regulator to the door; it is likely you will have to manually lower the window in order to access the bolts.
3. Remove the old regulator, disconnect all wiring and check the wiring , replace the old regulator with a new one if defective.
4. Tighten the bolts holding the new regulator and reinstall the moisture barrier. Make sure all the wires are put back in the door before closing the door panel.
5. Engage the power window switch and the new regulator should work unimpeded.