When radio was stolen the wiring harness was cut. I have a 2001 Isuzu Rodeo and I need a diagram to match the colors to the after market radio wiring harness.

read chapter radio here

https://eautorepair.net/Marketing/Default.asp



bingo.
answered for the car harness
not 100000 models of radio ever.

read (you meant main harness to radio sub harness.)
and car may have 5 or more harness for 5 or more very complex radio head end options new,so only the real service manual covers all that for sure,or if lucky 2nd fiddle here.

https://eautorepair.net/Marketing/Default.asp

" this radio "?? The one that only you can see?

Generally the harness plug would fit all modern Fords. If not you adapt.

Ford Ranger Radio Wiring Diagram

https://www.therangerstation.com > tech_library > radio...
But what if your Rangers harness is missing the radio plugs at the end of the wires? Ford doesn't use the same color wiring in all applications but there ...
Wire Color: Used For
Lt Blue/Red: Illumination
Black/Pink: Fused Ignition
Black: Ground

2003 Ford Ranger Car Stereo Wiring Schematic

https://www.modifiedlife.com > 2003-ford-ranger-car-s...
If you want to know how to change your radio in your 2003 Ford Ranger or figure out why your car radio stopped working, a 2003 Ford Ranger radio wiring diagram ...

After Market radio install issues - Ranger-Forums

https://www.ranger-forums.com > after-market-radio-in...
Mar 23, 2021 - My daughter (16yo) has a 2003 Ford Ranger Edge. ... cut the original wire harness off and started connecting the corresponding wires based on the diagrams.
Wiring Colors - Ranger-Forums - The Ultimate Ford Ranger ...
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Hi, you can usually buy a stereo wiring harness that plugs right into your car and they are color coded to match the standard aftermarket wire radio harness, all you do is take the plug from your new stereo and match the wires with the adapter, just connect the matching wire colors. it's super easy and well worth the $15-20, and you don't have to cut up your factory harness.
good luck!

USA car?
where are your hands, now.
where is this harness. at , EXACTLY?
my guess , new fuel pump and is the wrong pump?
finding Isuzu parts in USA is hard. after thier departure.
also on allcars pump vary by engine options.
so no engine stated. so cant help much at all.

but if in usa and if your engine is listed here.
here are all the pumps made after market here. in USA
fixing cars is easy
finding good parts is very hard, and takes skill.

gas engines not diesel.
3.6L shown.
https://www.rockauto.com/catalog/x,carcode,1355857,parttype,6256

are you replacing the whole assemblY ? it just a connector on top of rack , no pig tails
but are you replacing the pump ON THE RACK
that different and lots harder.

do say.

Did you buy a connector to plug the radio directly into the truck harness. You shouldn't need to know the wiring in the truck, since the aftermarket connector does the truck side for you. wire the connector into the radio then just plug it right in. The connector's wires will have words written on each on to tell you which wire it connects to on your radio. You can pick one of these plugs up from your local Walmart for under $10 in the stereo department.

here are the wire colors and what each does.
1994 Isuzu Rodeo Car Audio Wiring Guide
Car Radio Battery Constant 12v+ Wire: Red/White
Car Radio Accessory Switched 12v+ Wire: Brown/White
Car Radio Ground Wire: Black
Car Radio Illumination Wire: Red/Green
Car Stereo Dimmer Wire: Red/Yellow
Car Stereo Antenna Trigger Wire: N/A
Car Stereo Amp Trigger Wire: N/A
Car Stereo Amplifier Location: N/A
Car Audio Front Speakers Size: 4′
Car Audio Front Speakers Location: Dash
Left Front Speaker Positive Wire (+): Blue/Yellow
Left Front Speaker Negative Wire (-): Yellow
Right Front Speaker Positive Wire (+): Green/White
Right Front Speaker Negative Wire (-): Gray/White
Car Audio Rear Speakers Size: 4′
Car Audio Rear Speakers Location: Side Panels
Left Rear Speaker Positive Wire (+): White
Left Rear Speaker Negative Wire (-): Red/White
Right Rear Speaker Positive Wire (+): Orange
Right Rear Speaker Negative Wire (-): Black/Orange

no wiring diagram needed go cut a plug from a junk yard and wire it into the cut wires then buy the adapter kit for you car and wire that to the car plug and the radio plug.

http://www.the12volt.com/installbay/vehicles.asp try this site out and see if it will help you.

A few weeks ago I bought a new JVC stereo for my 2001 Isuzu Rodeo. I was advised that using a wiring harness would be the best option to install it. I spent an entire Saturday going from one store to the next (Autozone, Advance Auto Parts, Radio Shack, etc.) looking for the wiring harness specific to an Isuzu Rodeo but, to no avail. I searched several online sites looking for one and finally found it at http://www.beachaudio.com/ . The cost of the harness was under $10 and with express shipping I only paid about $20. Since I ordered it on a Wednesday night with 3 day express shipping, I assumed that I'd receive it the following Monday given any processing time and the weekend but, it was delivered to me just two days later. My husband installed my new stereo that Sunday using the harness that I purchased and it works great! Hope this information helps.