Hi all. As the thread title says, I have a Peugeot 306, a second generation one. I want to replace all the speakers but leaving the standard fittings in place - ie. no huge holes in the parcel shelf. Having taken off one of the front door panels already to fix a water leak, I've discovered that sorting the front out is especially important, as one speaker is damaged; the cone has partially detatched from the mounting, so it rattles a lot. From what I've found out on google, the speaker cases on the parcel shelf take a bit of getting in to, but it can be done, and all the speakers front and rear are 17cm coax. I've also heard that there is no clear indication of polarity, either from the stock speakers or the wiring. Time to get a multimeter? Have I got my facts right? Most importantly, am I right about the 17cm speaker size? I have a budget of about £100, so £50 per pair. I already have a basic but capable 4x50w Pioneer MP3-CD head unit - unfortunately, its potential is being trampled on by the state of the rest of the sound system. I was thinking maybe something like two pairs of these, as they match up quite nicely to both my budget and the power the head unit can provide. Any hints or advice appreciated.