Looking for some answers, i've ploughed through the hundreds of ICE posts and found some useful info (thanks all !) but now I'm lost


I've just bought the Pioneer TS-Q131C component speaker upgrade (Online-CarAudio IEM Electronics LTD).
Haven't fitted them yet, hopefully this weekend. I will remeber to tape up some of the holes for better bass response.
Now, I'm considering a standard (non MP3 cd playback) Cabasse update list HU (want to try to keep things as simple as possible - unadventurous, lazy me

Will this unit be a straight replacement for my lame 4x15w unit and will it also be compatible with the indash cd changer?
Because it has a higher output have the dimensions changed?
It has been advertised as Clio/ Scenic/ Megane, I will have to double check details with the vendor.
I'd appreciate any guidance, thank you

Marc
Just found out the Cabasse unit I was looking at was actually from a Laguna, d'oh !!