Check Owner's Manual. If you do not have one.Check Related links below.
Get a radio hardness that fit a Ford Expediton to be able to install the radio to the original Ford Expediton wire hardness.
Anytime a battery cable is removed from the battery the radio will need to have the clock reset and the radio stations re-programmed. (Helpfull)
try 3523, it worked on my radio.
Check your fuse panel for a blown radio fuse.
Any time a battery cable is disconnected the preset radio stations have to be reset and the clock has to be reset ( if that is what you are referring to )
I had to take mine to the local Chevy dealer to get the code to reset the radio after the battery was changed. I was charged $40 by them to do this.
anywhere from 1-4 years if you are worried about the battery you can buy a spare at radio shack or walmart
If the battery was disconnected during the repair you may need to contact the dealer for the radio code and procedure to enter the code.
You need to enter your radio code, it should have been supplied with the vehicle and or written in the front of the owners manual.
If you take your car to Nissan car dealership and request for your radio code with the right identification, your wish will be granted.
The new battery was dead. ======================== Another contributor believes that this is the more likely answer: The 'newer' car radios, with programmable push buttons ... and other things where you can set it once and then forget it ... need to constantly connected to power or else they 'lose their memory'. When they're installed, there's a wire that stays connected to the battery even when the radio is off and the ignition key is out. If you changed out the battery on your car, then there was a time when this extra power wire to the radio went dead, and the radio lost its memory. You have to start from the beginning and reprogram everything.
The radio has a security system to prevent theft. You will need a reactivation code from the dealer to allow it to work again