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There are a range of OEM+ switches available that are identical in design to the Interior Monitoring Disable Switch, located on B-pillar trim on a Golf IV.

These include an "FS" Switch (originally used for Handsfree Device = Freisprecheinrichtung), an Interior Light Switch, a "TAXI" Switch, an "ALARM" Switch, a "FUNK" Switch and the aforementioned Interior Monitoring Disable Switch.

These switches are currently utilised in various taxis and emergency vehicles available in the German market. The picture above shows some of these switches mounted in the centre console of a Passat 3C taxi.

All these switches operate as a "momentary action" button only. If you require them to switch something on permanently, then you will require an additional "latching relay" or an appropriate circuit.

The switches have perfectly matching red illumination and will dim with the dashboard lights at night if you connect the appropriate pins from the switch to the vehicle dimmer circuit.

There is also a yellow "telltale" LED in the face of the switch which can be utilised to indicate that the accessory they control is ON. This has an independent circuit within the switch and is wired separately.

As you can see, they are a perfect size to fit on the vertical surface in the centre console behind the sliding ashtray cover:

There is enough room to neatly mount three switches in this location. Some small clearancing of the bottom of the Radio Cage is also required for each switch. You will note that the square pegs on the rear face of the centre console mount through the square holes at the bottom of the Radio Cage piece:

The extra switch in the above picture is my Daytime Running Light System ON/OFF Switch, which is normally hidden under the lower trim panel below the Climatronic. It is originally used in the Škoda Fabia II and Roomster for the same purpose. It does not illuminate at all.

These switches are also small enough to mount in other locations in the vehicle, such as near the handbrake on the centre rear console or on the lower dash trim panels around the steering column. If you have a European specification car with the Fuel Flap Release Button near the handbrake, please note that these buttons are identical in size, however the texture and style of the press button part is slightly different (smoother and flatter than Fuel Flap Release).

4B0 962 109 A 01C     Interior Monitor Disable Switch.

1T0 927 235                Interior Light Switch.

1T0 927 124 9B9         "FS" Switch (originally used for Handsfree Device = Freisprecheinrichtung).

1T0 919 241                "ALARM" Switch.

1T0 927 227                "TAXI" Switch (originally used to turn on the exterior roof light on Taxi).

The "FUNK" Switch is not available through the normal VW spare parts network, so does not have a valid part number allocated to it. I have, however, managed to procure a very limited supply of these. Click here if you are interested in one of these rare and funky items.

This is what the switches look like mounted in centre console of my .:R32:

This is what the switches look like at night (note also Interior Light Switch is ON with yellow telltale lit):

These items will assist in the installation of these switches:

1 x 4D0 971 636         6-pin Plug (for all switches except 4B0 962 109 A 01C)

3 x 000 979 009         Repair wire (for 4D0 971 636 Plug only)

1 x 1J0 972 722         4-pin Plug (only for switch 4B0 962 109 A 01C)

2 x 000 979 133         Repair wire (for 1J0 972 722 Plug only)

1 x 1C0 941 597        OEM "latching relay". Control Number "434" is stamped on the housing.

You can, of course, utilise any suitable generic "latching relay", however this genuine VW one has the useful feature of resetting automatically. The specific technical information for this relay is fully described on the OEM Relay Technical Information page.