Whether your an expert installer or a novice enthusiast with a 1999 Chrysler 300M, an automotive wiring diagram can save yourself time and headaches. One of the most time consuming tasks with installing a car stereo, car radio, car speakers, car amplifier, car navigation or any mobile electronics is identifying the correct wires for a 1999 Chrysler 300M.
The Modified Life staff has put their heads together to create an invaluable resource containing free car stereo wiring diagram, free car wiring diagram and free radio wiring diagram. Feel free to use any car stereo wiring diagram or factory radio wire colors that are listed on Modified Life but keep in mind that all information here is provided “as is” without any warranty of any kind. Use of the wiring information is at your own risk. Always verify all wires, wire colors and diagrams before applying any information found here to your 1999 Chrysler 300M.
If you can’t find your car radio wiring diagram, factory radio wire colors or stereo wire diagram on Modified Life, please feel free to post a car wiring diagram request (Radio Wiring Diagram Request Page) and we’ll do our best to find you the information you need for your mobile installation.
1999 Chrysler 300M Car Stereo Radio Wiring Diagram
Car Radio Constant 12V+ Wire: Pink
Car Radio Ignition Switched 12V+ Wire: Red/White
Car Radio Ground Wire: Back Strap
Car Stereo Illumination Wire: N/A
Car Stereo Dimmer Wire: Orange
Car Stereo Antenna Trigger Wire: Orange/Red
Car Stereo Amplifier Trigger Wire: N/A
Front Speakers Size: 6 1/2″
Front Speakers Location: Doors
Left Front Speaker Wire (+): Dark Green
Left Front Speaker Wire (-): Brown/Red
Right Front Speaker Wire (+): Purple
Right Front Speaker Wire (-): Dark Blue/Red
Rear Speakers Size: 6 1/2″
Rear Speakers Location: Rear Doors
Left Rear Speaker Wire (+): Brown/Yellow
Left Rear Speaker Wire (-): Brown/Light Blue
Right Rear Speaker Wire (+): Dark Blue/White
Right Rear Speaker Wire (-): Dark Blue/Orange



























Nice diagram – but how do i disconnect the front center speaker ? there is no wiring colour for that?
i can get the cd player on in my 99 300m but its got a stock infinity sound system and it has an amplifier also and for some reason when i get the cd player on no volume comes out no matter how loud it is or what mode its on and ive tried four different cd players and all of them have the same problem i think its because the wiring harness they make for installing them dont include the third adapter i need to plud the amp into my new stereo im not sure but if you have any idea how to help me please let me know thanks
Joe, your vehicle has a factory amplifier that needs to be turned on by your after market radio. The car stereo amplifier trigger wire has to be wired up to turn on your factory amplifier. Unfortunately, we don’t have this information but maybe someone from the Modified Life community can post that information here. Hope this helps. Good luck.
i hooked up the orange/red ant trigger wire to the blue/white ant trigger wire on the aftermarket
Jay, thanks for the car stereo wiring information contribution!
I have the same problem but i dont understand. i have the correct wire harness for the aftermarket radio. there is no orang/red ant trigger. and the blue/white wire is the AMP TURN-ON (12v+). I have only 3 wires from my radio unused. the solid blue (remote turn on, and om’d to be a hot wire) another blue solid wire, but from the harness thats for ANT POWER, and the orange from the harness for ILLumination (dont need right?) so leaving me with another wire unused from the stock thats purple and unknown to me. am i suppose to cut and strip that purple one to a ground? No one so far knows and I’m too poor to send it in. It took me forever for all this stuff anyways. and i have subs too but not hooking it up until i know what wires to connect for sound on my radio. PLEASE AND THANKS
just connect the blue wire of the after market stereo with the blue one with white stripe on the wire harness you bought!!
i have a 2001 300m. how do i know if it has a factory amp? and if it does, where would it be?
Owen, ask and you shall receive: 2001 Chrysler 300M Car Stereo Wiring Diagram
Can I install a aftermarket amp and stereo headunit and still use the steering wheel controls and/or stock in dash cd player?
Adam, there are some steering wheel control adapters that allow you to use your factory steering wheel controls with an aftermarket radio. Here is the adapter you need:
Steering Wheel Control Adapter for Chrysler Vehicles
If you’ve never installed car audio before, we advise you to take your car to an experienced mobile audio installer. Hope this helps. Good luck with your steering wheel controls installation.