Is a 2003 Clio fitted with an ISO adaptor that avoids the need for splicing into existing cables when installing new head unit - ie: is it simply a case of unplugging OE head unit and plugging in new (probably Pioneer/Alpine). Ive been looking at Caraudiodirect.co.uk and it implies its this easy - if using a wiring adaptor from the manufacturer of the new unit.
For those who have ditched the OE unit, whats involved in hooking up the new head unit ?