Welcome to the forum. Getting a 4-digit Anti-theft code is a lot more restricted than it used to be. I don't have the needed permissions.
A dealer service manager or parts department manager/shop foreman should be able to look up the code on the Chrysler database.
Does this radio come from your own car? Or did it come from another car? If you bought the radio used, you will probably need to bring proof, like a bill of sale or the VIN number of the car it came out of. Bring a photo ID for yourself.
If things look suspicious, they can refuse this service. Bring all of your proof.
The car may need a PROXI configuration alignment to accept the different radio if you install it & the odometer is blinking.
There are a few YouTubes and websites that claim that they can provide the code, but I think that they are scams.
I saw this discussion in Chrysler Forums, but it may be out of date now:
Audio/Visual Electronics - Radio codes for free - If someone needs a code to the radio is only necessary to submit these data plus VIN number. I will be happy to help! P.S. Can and a photo of the sticker Model:MU9CY95G Part no:P56038585AM Date code:2851 s/n:TCCAA2851Z3314 Suplaier:17719D
When typing in the radio serial number, the letters 'VP' are not included.