Hi there, really hoping someone can help me! Just purchased a 2003 c3 pluriel at the weekend...on the right hand side of the radio there are 3 buttons, the bottom one looks like a blank which is fine but the 2 above are so worn that I have no idea what they are! :( I think the top would be to lock the back electric windows? and the next one down is something to do with over speed? Hoping someone can confirm...but most importantly does anyone know where I can source replacement buttons as they look tatty. Hoping someone can help...thank you