Found a company that produces a lead with a plug on one end and spade connectors on the other. This allows you to fit new speakers without having to cut the original speakers wires.
http://service.winnet.it/phonocar/easysite/easysite_images/4_653.jpg
http://service.winnet.it/phonocar/easysite/pers_scheda3.asp?livello=4&Marca_Auto=renault&Car%20Model=1-%20Cables%20and%20aerials%20fitting%20all%20Renault%20models&id=2133&lingua=inglesehttp://service.winnet.it/phonocar/easysite/pers_scheda3.asp?livello=4&Marca_Auto=renault&Car%20Model=1-%20Cables%20and%20aerials%20fitting%20all%20Renault%20models&id=2133&lingua=inglese
Chris.