Hello all, I have managed to convince my old man to lend me his old sony turntable, but I am a bit stuck/confused with the setup and I need your help! Although I have researched turntables for quite a while online (I had planned to buy one for christmas, until it proved a bit expensive at this time), I am quite new to all this. I bought myself a Denon integrated amplifier off of eBay (Denon pma-355uk), which seems to be working fine. However, I was under the impression that you plugged the RCA cables running from the turntable into the 'phono' input in the amplifier, however these two inputs seem to be blocked, like this: http://i.imgur.com/jYDsW.jpg This picture was found online, and there are a few examples of this amp with the phono input blocked the same as mines, but there are also pictures of it without... So I am wondering if you are able to take these things out? They don't seem to want to budge using my bare hands. How do you get them out if so? Or is there anywhere else I could plug the cables into that would work? Are they meant to be removed or is there a reason for them being in there? Thank you!