My car stereo is locked, its asking me for a code but i don't have any code, this is a used car that i bought a couple of years ago and i put a new stereo but now i want to reinstall the factory stereo, how can i get this code?

Hello
I thinks that you have its original remote handset with you now, and posts this solution. If you don't have it, either buy a new original remote handset or try to get it from any of your friends and relatives, who owns the same model of Mitsubishi Tv, you have now; only to unlock it. After unlock, you can use any other remote control.
Mitsubishi sets use a four-digit code for a V-Chip locked program, view a locked TV, cancel the lock, or to enter the V-Chip lock menus. You can view the locked shows on the TV set by pressing the number 9 and QV buttons on the remote at the same time, whenever your code is requested. This process temporarily unlocks the TV and asks you to enter a new code.
OK.

i beleive it is 0000 if not contact dual or google the problem

unfortunatly thats the only way if the radio is locked. if it still asks for a code then it should be free.

contact the dealer of your car, give the vin no:of your car to them, and they will be able to give you the radio code

Not familar with your car but I had same problem many years ago with a Vauxhall Astra and did same as you, disconnected battery and re-connected, radio didn't work - but my display kept flashing for security code to be re-input, which I didn't have.
Yours could be the same if radio not worked since disconnection - solution: if you dont have code & not in any documentation you got with car, then the radio will need to be re-coded by a dealer (expensive) or enquire with local car spares shops - they normally know a cheaper source. Mine cost about £18 (5 years ago) to get re-coded & I had to remove & reinstall myself.

If you go HERE you can get a new manual. other than getting a manual I don't know what more you could do. I'd try and see if anyone you know has one first.

Hope that helped,
AngellXP

I work at Best Buy and I have one

HI MARY THE CODE SHOULD BE IN THE OWNERS MANUAL

Don't buy kenwood it's the crappies stereo equipment out there.

just enter wrong codes till it says enter puk code then for puk code call service provider & get it then try good luck