Finding out technical speaker specifications

Hey, I'm new to the forums and hoping I can get a little hand with my current setup //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif

I have a Ford KA, and have had a Pioneer MVH-350BT fitted into it. The speakers on it are not too shabby either. Bass is clear, and the equalizer really brings out the best in the current speakers - However it's still not good enough for me!

So my question is, how can I find out the technical specifications and/or the make of my current speakers? I have a feeling the speakers themselves wouldn't have any sort of branding on them, and I'm not prepared to start opening things up (such as taking door panels off etc) myself just to find out speaker specifications!

I know this is quite a limited question, but just hoping someone has a good trick or a suggestion to recommend me. Many thanks!