Annoyed by the DST-switch, I startet to transplant a wireless clock receiver module from a cheap clock to our wireless weather station and was very surprised how easy this worked. (No wonder if you see how universal the PCBs are made)
For detailed Information, visit the Project Site:
http://projects.trueffelwurm.de/?p=131
Cool upgrade! I guess they made one PCB for both the radio and non-radio versions to save money in manufacturing. Looks like this is an easy way to save money and get the radio version.