Wish I saw this sooner sorry! Firstly there is an additional AMP under the central facia small box area (above ash tray) Now the leads from the radio/cass are feeding into the AMP, To come straight to the point! Dont bother even trying to cut and join wires!! you will be there ages and again even more if you want to return the wiring back to the original state! Go to HALFORDS and buy the ADAPTER lead, On my 1998 Banana I had to use a Ford Galaxy 2001!! Now HALFORDS will normaly let you try it outside (if you have the facia removed) Oh but some of their staff are confused if you ask for a Ford Adapter Kit for a Seat, but just confuse them more by saying its really a VW!! anyway the bad news is the adapter kit cost's apx £25 ( But it is worth the hassel free time and sticky tape ) ONE MORE THING!! The satellite control usually won't work mind!
Abecht
November 2008