Hated the two doors on my 346 lbq had two separate keys.
I went looking to replace one to have matching keys. While searching I ran across good price on keyless and the company even sent me matching locks so now same key works both locks as a back up.
The company is running a special at $134.99 each. Install was like ten mins per lock. Now I have keyless and the same backup key for both locks. Happy camper
Anyway "Trailers Plus" has a good deal. Not sure for how long or how many they have.
https://parts.trailersplus.com/index...door-lock.html
YouTube install video:
http://youtu.be/-ji5v-EPUK0
YouTube programming video:
http://youtu.be/erL5vMI9c7I