About the radio control dodge challenger it will not work at all.

door speaker wiring short.
no programming no.
flash no
it needs to be diagnosed and then repaired.
the AUDIO AMPS,. IN MOST THINGS NOW SHUT DOWN IF THE SPEAKERS OR THERE WIRES SHORT OUT, PREVENTING
AMP BLOWING UP. (cool no?) saves its own bacon it does.

SAME AS YOUR MODERN HOME AVR DOES. FOR THE SAME REASONS.(PROTECTION LAMP GLOWS THERE!)

SOME CARS THE AMP; HAS ITS OWN FUSE. AND THOSE BLOW. OR EVEN LOOSE.

2009 Dodge Challenger Car Radio Wiring Chart
Car Radio Battery Constant 12v+ Wire: Red/Orange
Car Radio Accessory Switched 12v+ Wire: Inside Data Bus Wire Harness
Car Radio Ground Wire: Black/Light Green
Car Radio Illumination Wire: Inside Data Bus Wire Harness
Car Stereo Dimmer Wire: Inside Data Bus Wire Harness
Car Stereo Antenna Trigger Wire: Gray/Orange
Car Stereo Amp Trigger Wire: Inside Data Bus Wire Harness
Car Stereo Amplifier Location: High in the Driver Side Kick Panel
Car Audio Front Speakers Size: N/A
Car Audio Front Speakers Location: N/A
Left Front Speaker Positive Wire (+): Gray/Violet (At Amplifier)
Left Front Speaker Negative Wire (-): Gray/Yellow (At Amplifier)
Right Front Speaker Positive Wire (+): Dark Green/Violet (At Amplifier)
Right Front Speaker Negative Wire (-): Dark Green/Yellow (At Amplifier)
Car Audio Rear Speakers Size: N/A
Car Audio Rear Speakers Location: N/A
Left Rear Speaker Positive Wire (+): Dark Green/Tan (At Amplifier)
Left Rear Speaker Negative Wire (-): Dark Green/Gray (At Amplifier)
Right Rear Speaker Positive Wire (+): Dark Green/Brown (At Amplifier)
Right Rear Speaker Negative Wire (-): Yellow/Gray (At Amplifier)

https://www.youtube.com/watch?v=-kUOZVb8XKU

Hi, my car radio is off ( Mitsubishi challenger 2004) I've got a code, but cannot enter it because the car radio is off. I already unplugged the battery to reset the system but still not working. Anyone know how to unlock it, without a code ?
thanks

If you have the HID system it sounds like the control module the bulb mounts into

Start out by checking the fuse panels. Look at the owners manual and find the location of all fuses/relays associated with the cruise control.

Try looking for a fuse box in the glove box. Even try opening both front doors and looking on the sides of the dash. O e other spit may be under the steering column. You will have to lay on the driver side floor looking up to find d it if its there

You may have lost all the station settings when you took off the battery cables. Have you tried tuning the radio to different stations?

when the check engine light is on it means that one or more of over 200 poss faults has occured in the electronic engine or emission controls systems, to find out what the fault code is for the problem u will need to run a fault code test of the OBD 2 electronic control system, most Discount auto parts stores lioke Kragen do this for free.

check the engine to body ground strap. located rear top of engine screwed to firewall Remove,clean, and resecure.

IOD fuse replace it it worked for me i had no radio interior lights or power mirrors