There is a bit more to this you need to figure out.
There are 3 password levels on the radios:
Read password - if active the radio can only be read with the password.
Write password - if active the radio can only be written with the password.
Read/Write password - both of the above.
If it -just- has the read password only, you can create a new file and overwrite the radio with a new codeplug without a password.
The other two, you either need the password from the original owner, or you'd need to send the radio in to Kenwood to have it wiped.
I'd be cautious about buying a radio like this. There's a lot of questionable sellers out there who sell radios with questionable backgrounds. A big agency won't "forget" the pass word. A small agency may have their radios programmed by a local shop, who may have put passwords on the radios to lock them into the specific shop.
Getting the password removed may turn out to be costly. If the deal seems too good to be true, it probably is.
