hi i have a xsarra picasso 52 plate. my keys two rubber buttons have fallen off and i started pressing the little button inside the key to lock my doors. this button has also now snapped off the solder connections on the circuit board of the key. i seen repair kits on ebay. they have the 2 rubber buttons and the 2 inner buttons you can solder on. what i want to know is , is it worth buying this kit? or is it easier to buy a 2nd hand key from ebay and reprogram it? if its easier to reprogram it, then could someone please post a guide on how to do it? thanks