There are numerous wires on the back of the radio including powers, grounds, speaker, antenna, CD changer controls, computer communication, etc.
See page 3 or 4 of this list and you will find how to remove an old factory radio from a 95.
If there is, I would assume the password to be 1234 or 0000. Check your car manual The factory radios have never used codes.
With the radio presets
If the radio in a 1996 Dodge Grand Caravan quits working, it is likely a blown fuse. It could also be faulty wiring or a defective radio.
Unhook the battery.
it has 400 watts
under dash on driver side
I owe a 2001 doged caravan sport my radio is not working properly after changed the altarnator
Go to the dodge place and ask THEM to remove it
check your fusees first, if it is an after market radio check your connections also check battery connections
See page 3 or 4
To install an amp to a factory radio of a 2012 Dodge Ram 1500, ensure that the amp bypass the harnesses.