Iv just bought myself a lovely vrs last weekend, I'm seem to be coming into some problems with the central locking in a sense of it's not working!! I press the button and nothing happens so I have to use the key then the alarm goes off but when I get in the car it will work on the key again is this a sign of battery flat on the car or key? Any help would be great cheers!!!

Also I have a little red light flash when I press the button And I fitted a CD player at the weekend probably not the cause but thought I'd add it in there

Yes, I bet that CD player is the cause your remote fob is not working. We once fit a CD player on a Polo and after the remote fob stopped working. I bet if you remove that CD player it starts working again

Cheers mate do you no the reason why it does this?