The dash locks on my SC-811 radio cd won't lock. Have taken off, cleaned & lubed, but they will not lock in the "up" position when the buttons are fully depressed. Seems like the springs are shot. Any remedies? Where can I get replacements?

 

I would very grateful if you could help me in finding the code of my HU-1205 Nav-Radio, well it use to work properly until I changed the battery then it is asking the code.