Keyless keypad code.

[NBF823]

I don't know the code for the keyless door lock on my 85 200sx.

Anyone know how I can find it?

Anyone know what other car I could get a keyless control box from with a known code?

[the converted]

I'd guess the dealer if they still have the code in the computer system. One from a similar year Maxima might work but good luck finding one that someone knows the code to.