RDS Cassette Radio out

Have a 2002 CV LX - was P71 on assembly line, so mixed parts when completed, according to mechanics who find different parts installed instead of LX parts.
My radio is a Cassette model with RDS and no clock setting. Had to replace the A/C blender and foolishly removed radio to access blender. Didn\\'t have to, was able to replace blender through pass. air bag access without removing dash. (miraculously). Put radio back in and clock is nowhere to be found. No RDS request for minutes or hours, just like it was never there. I sure miss the clock. Anyone have any suggestions on how to get the clock working once more?

A lot of problems occur in electrical connections. You might want to demate the connectors, clean them with alcohol and a brush, blow out with air, then mate them again. As an electrician friend once told me "the problem is usually in the make-up." Translated - in the connection.