Megain II facia plate, but youll have to take the cage out again as the cage goes on top of the facia plate
It's all about a new HU, the Renault ff one is pants, i got an alpine HU recently & some infinity kappa comps, put the old speakers in the back, it sounds absolutely amazing
Yeh got the facia sorted now! Check my progress thread!
Also your right it is all about the new HU and uprated component speakers.
The 305s sounds amazing too. Looking at getting the KTP-445 amplifier to run inline as this plugs into the HU and provides 45w RMS per speaker!! Great little addition for £100.