Where can I buy a docking pad to repair by docking station?

Hi,

I have a Bose docking station for iPod classic. It was working fine but suddently stopped playing music (it does charge the iPod, though). I tried different things to no avail so I ended up bringing it to a certified Bose dealer where I live (in Africa) and they told me it needs a new "docking pad" and will charge me USD 150! It seems quite an excessive price for a repair, so I am wondering whether I could do it myself. Do you know where I can get a docking pad? (I don;t even know what it is!). Your help would me much appreciated! Thanks!