Volkswagen Golf Workshop Service and Auto Repair Manuals

Installing an "ALPHA" unit

When installing an "ALPHA" radio of generation 05.98 ▸ in a vehicle ▸ 04.98, perform the following work steps:

Contact 5 in 8-pin multi-pin connector III, -T8-, black is no longer supplied with positive on "ALPHA" units of radio generation 05.98 ▸. This means that equipment connected such as powered aerial or an additional amplifier can no longer be activated.

Installing a "BETA" unit

When installing an "BETA" radio of generation 05.98 ▸ in a vehicle ▸ 04.98, perform the following work steps:

• ‒ Remove contact from chamber 5 of 8-pin multi-pin connector III, -T8- and insulate the removed wiring connection.

If a control wire for additional equipment i.e. power aerial or additional amplifier is to be connected to this contact, then reconnect this wire to contact 17 on blue multi-pin connector I, part 3.

• ‒ Make a wiring connection from chamber 7 to chamber 5 on black 8-pin multi-pin connector III, -T8-.

Therefore chamber 5 is supplied with voltage (terminal 30). If this wiring connection is missing the radio unit cannot be switched on.

If a CD changer is installed the vehicle 10-pin connector -T10- must be converted to the multi-pin connector I connector housing for radio generation 05.98 ▸. Observe current flow diagram and use adapter connection when doing this.

A "beta" unit of the generation 05.98 ▸ used in vehicles designed for radio generation ▸ 04.98 will not work in conjunction with Digital Sound Packet (DSP) system.

Remember also self-diagnosis is not possible with radios of radio generation 05.98 ▸ in vehicles ▸ 04.98 and that the convenience anti-theft system will not function.

Installing a "GAMMA" unit

When installing an "GAMMA" radio of generation 05.98 ▸ in a vehicle ▸ 04.98, perform the following work steps:

• ‒ Remove contact from chamber 5 of 8-pin multi-pin connector III, -T8- and insulate the removed wiring connection.

If a control wire for additional equipment i.e. power aerial or additional amplifier is to be connected to this contact, then reconnect this wire to contact 17 on blue multi-pin connector I, part 3.

A connection to yellow multi-pin connector I, part 1, contact 6 is also possible.

• ‒ Make a wiring connection from chamber 7 to chamber 5 on black 8-pin multi-pin connector III, -T8-.

Therefore chamber 5 is supplied with voltage (terminal 30). If this wiring connection is missing the radio unit cannot be switched on.

If a CD changer is installed or the radio unit preamplifier outputs are used, then the vehicle 10-pin multi-pin connector -T10- housing must be converted to the multi-pin connection I of radio generation 05.98 ▸. Observe current flow diagram and use adapter connections when doing this.

A "GAMMA" radio ▸04.98 in a vehicle designed for radio generation 05.98 ▸will not function in conjunction with a DSP system (Digital Sound Package).
Trimming the DSP system of the previous generation and generation 05.98 ▸ is not the same.

Remember also self-diagnosis is not possible with radios of radio generation 05.98 ▸ in vehicles ▸ 04.98 and that the convenience anti-theft system will not function.