Hello all, I've just had the fitter bloke from halfords out to fit a sub with amp (not lazy, just haven't got the tools ), and he said that because I have the factory default head unit on my 03clio extreme 2, it didn't have a certain port. I think he said I need an RCA out adapter, but I wasn't sure as it was broken English. We both went to halfords but they didn't have what he needed, so he said get it online, then book it again with him. What is it I need?? Any help will be greatly appreciated!!!