The door buzzer in in the dash, set off with the door switch in the pillar. That speaker plug is used for speakers from about 1999 onwards, before that they were a chunky yellow style
Stu
Cars
1995 Xantia 1.9TD SX in (faded) Red
2003 Fiesta 1.4 Zetec in GREEEEEEEN 2001 206 1.9 LX
2001 Saxo VTR
1999 Saxo 1.1 East coast
1999 Punto
1996 306 1.8 XN Auto
1996 Fiesta 1.3