We added new Power mirrors to Dakota that didn't come with them. Plugged them into harness already in doors and added factory switch purchased on ebay. Is there a fuse to add and where is location as

Depending on the make , model an year vehicle You won't be able to communicate with door module an not all vehicles have door modules ,what makes you think yours has door modules An it depends on scan tool , has to be factory or professional grade scan tool . Your probably have broken wires inside the rubber boot from the body to the door . An power windows usually have a circuit breaker not a fuse .

no symptoms posted (broke glass or ???) can we be on same page?
"how do I switch," verb switch , the mirror as switches inside, too.

please say what that word means. switch and the failure.
1: remove and replace with new.
2: move right to left and left to right side.

why would you do that #2
fold away mirrors/ Export only (this is usa forum so..)
these,NASA grade mirrors are very complex... not just glass and plastic. heaters ,motors, memory , etc.

the FSM cover all tests for the mirror, including scan data.

ill quote the FSM now , 8 steps (just 1 fail,not heat, not memory failure or fold failure)
ONE MIRROR INOPERATIVE
(1) If the one inoperative mirror is on the passenger
side, go to Step 2. If the one inoperative mirror is
on the driver side, go to Step 3.
(2) Check if the passenger front door will lock and
unlock using the power lock switch on the driver side
front door. If OK, go to Step 3. If not OK, go to Step 6.
(3) Disconnect and isolate the battery negative
cable. Remove the trim panel from the front door.
Disconnect the 12-way mirror wire harness connector
from the door wire harness connector.
(4) Using two jumper wires, test the mirror as
shown in the Mirror Test chart (Fig. 2). If the mirror
tests OK, go to Step 5. If the mirror does not test
OK, replace the faulty mirror.
(5) Disconnect the 12-way door wire harness connector
from the door module connector receptacle.
Check all of the circuits of the door wire harness
between the connector for the mirror and the connector
for the door module for opens or shorts. If all of
the circuits are OK, replace the faulty door module.
If any of the circuits are not OK, repair the open or
shorted circuit(s) as required.
(6) Use a DRB scan tool and the proper Diagnostic
Procedures manual to test and repair the faulty Programmable
Communications Interface (PCI) data bus
communication between the two door modules.

(bar stool answer) all cars. mostly
pull door skins
unplug motor conn.
unscrew mirror base from door.
extract mirror,

The Easiest Way is to Get the Wiring Harness Diagram with the Colors and Verify that you plugged the Fog Lights into the Correct Harness. I once had a FORD that had a Fuse BOX that had a FOG LIGHT and No Power to that Fuse.

Make sure you test the Fuse at the Box and then Trace the wires and if the Switch was wired at the Factory, you should be all set

If all that happened at once, highly suspect a broken wire harness that feeds your door panel.
I think there are separate circuits for the locks and the windows and mirror.
At the factory, I believe the doors are installed on the vehicle with the wire harnesses already in them, means they plug the door harness into a receiving socket in an under-dash harness.
I'd wonder if the vehicle had been in an accident on that side.
Be blessed.

YOUR GOING TO HAVE TO DO SOME JUNKYARDING..YOU NEED TO BUY A DOOR HARNESS,BOTH DOOR HARNESS.WHICH MEANS TAKING DOOR PANEL OFF ,REMOVING WIRE HARNESS FROM INSIDE OF DOOR.. IE.. UNPLUGGING ALL WINDOW SWITCHES WINDOW MOTOR.AND PULLING IT THREW THE DOOR AND UNPLUGGING FROM DASH..SOUNDS LIKE A LOT OF WORK...BUT GOOD LUCK

Hi,
1991 Chrysler New Yorker Auto Security Wiring Diagram
Battery Constant 12v+ Positive Wire (+): Red and Pink
Battery Constant 12v+ Positive Wire Location: Ignition Switch Harness
Starter Positive Wire (+): Yellow
Starter Positive Wire Location: Ignition Switch Harness
Ignition Positive Wire (+): Dark Blue
Ignition Positive Wire Location: Ignition Switch Harness
Accessory Positive Wire (+): Black/Orange
Accessory Positive Wire Location: Ignition Switch Harness
Parking Light Positive Wire (+): Black/Yellow
Parking Light Positive Wire Location: In Drivers Kick Panel
Power Door Lock Positive Wire (+): Orange/White Or Orange/Violet
Power Door Lock Positive Wire Location: In Drivers Kick Panel
Power Door Unlock Positive Wire (+): Pink/Violet
Power Door Unlock Positive Wire Location: In Drivers Kick Panel
Door Trigger Negative Wire (-): Yellow
Door Trigger Negative Wire Location: In Drivers Kick Panel
Dome light Supervision Wire: Use Door Trigger (Requires Relay)
Dome light Supervision Wire Location: N/A
Trunk Release Positive Wire (+): Black/White (Requires Relay)
Trunk Release Positive Wire Location: At Trunk Release Switch
Horn Negative Wire (-): Black/Red
Horn Negative Wire Location: At Relay In Fuse box
Tachometer Wire Negative Wire (-): Black/Gray
Tachometer Wire Negative Wire Location: At Ignition Coil
Brake Light Positive Wire (+): White
Brake Light Positive Wire Location: At Switch above Brake Pedal
Factory Alarm Disarm Wire (-): Light Green/Orange
Factory Alarm Disarm Wire Location: In Drivers Kick Panel
Factory Anti-Theft System: N/A
Factory Anti-Theft System Location: N/A

Thank You for contacting Fixya.com

I would pull the door panel and check the plug in to the switch on the passenger side. It is possible the switch is bad, but usually only one (either the window or locks) will be bad but not both. Sounds like a power problem getting to the switch. As I said I would first determine the door switch is plugged into the harness.

The door panel lifts straight up off the door. The bottom has a few clips but the rest slides right up & off. The switch is bolted to the bottom of the panel with philips screws. You need to disconnect the harness first.

It sounds like you bought the wrong year mirrors. Yes you could cut the connector off you old mirror but you would have to know the wiring for the mirror not the truck.

If you still haven't fixed this, look at your wiring harness. The blue wire that comes off your factory harness is the external amp in the Infinity stereo. I found this out when I hooked my Pioneer head unit up. Coming off the aftermarket stereo should be a blue wire that says remote. Hook those up and you should be good to go.