Volkswagen Workshop Service and Repair Manuals

→ The radio system "BETA" comprises a radio unit and loudspeakers in the front doors. A CD changer is also possible, .

There is a bass loudspeaker fitted, with a diameter of 168 mm, in each of the front doors.

A dome treble loudspeaker is installed in the left and right-hand sides of the dash panel on a 100 mm base plate.

Of course the short rod aerial also belongs to this system .

Contact assignment of the multi-pin connectors I, II, III on the rear of the radio

Multi-pin connector I, -T20- consists of 3 parts that are marked with different colours:

→ Multi-pin connector I, part 1, yellow

This connector is not used.

→ Multi-pin connector I, part 2, green

•      7 -     Telephone input signal, TEL+
•      11 -     Remote control, REM
•      12 -     Telephone input signal, TEL-

→ Multi-pin connector I, part 3, blue

•      13 -     CD changer, DATA IN
•      14 -     CD changer, DATA OUT
•      15 -     CD changer, CLOCK
•      16 -     CD changer, terminal 30 voltage supply (+)
•      17 -     CD changer, control signal
•      18 -     CD changer, left and right channel, earth
•      19 -     CD changer, left channel, CD/L
•      20 -     CD changer, right channel, CD/R

→ Multi-pin connector II, -T8a-, 8-pin, brown

•      3 -     Loudspeaker + front right
•      4 -     Loudspeaker - front right
•      5 -     Loudspeaker + front left
•      6 -     Loudspeaker - front left

→ Multi-pin connector III, -T8-, 8-pin, black

•      1 -     Gala (volume adaption)
•      2 -     Telephone mute circuit
•      3 -     Self-diagnosis/K wire
•      4 -     Connection for ignition key controlled switching on and off (SU contact)
•      5 -     Anti-theft system control signal, SAFE (terminal 30)
•      6 -     Illumination (terminal 58b)
•      7 -     Battery + (terminal 30)
•      8 -     Battery - (terminal 31)