Pair Porsche Becker Radio Volume Knobs Buttons CDR220 CDR23 99664590100

Product Description

Refresh the appearance and operation of your factory Porsche or Becker radio with this pair of brand-new replacement control knobs. These knobs replace the original rubber-coated pieces that commonly become sticky, gummy, cracked, worn, or missing with age.

Installation is straightforward: carefully pull the existing knob from the control shaft and press the replacement into position. Radio removal is generally unnecessary.

Product Details

• Brand-new replacement control knobs
• Genuine/OEM-style radio components
• Porsche reference number: 996 645 901 00
• Alternate format: 99664590100
• Black, semi-matte finish
• Direct press-fit installation
• Suitable for the left and right rotary controls
• Quantity: Two knobs
• Radio is not included

Independent Porsche parts references identify 99664590100 as the replacement rotary knob for CR22, CR23, CDR22, CDR220, CDR23 and several Becker Traffic Pro radios. Porsche parts reference

Compatible Porsche Radios

Verify the model printed on the radio faceplate before ordering. Applications include select:

• Porsche CR22
• Porsche CR220
• Porsche CR23
• Porsche CDR22
• Porsche CDR220
• Porsche CDR23
• Porsche CDR32
• Porsche MDR32
• Becker Traffic Pro

Compatible Becker Radios

Also suitable for select versions of:

• Becker Traffic Pro
• Becker Mexico Pro CD
• Becker Online Pro
• Becker Monza
• Becker DTM
• Similar Becker units using the same control shaft and knob dimensions

Compatibility references describe a knob with an approximate 6 mm shaft opening, 14 mm height, 21 mm lower width and 16 mm upper width. Compare these measurements and the underside connection with the original before purchasing. Becker knob specifications

Researched Vehicle Compatibility

Common factory applications include select:

• 1997–2004 Porsche Boxster (986)
• 1998–2005 Porsche 911/Carrera (996)
• 1999–2005 Porsche 996 GT3

The vehicle year alone does not establish fitment. Porsche installed different radios during these production ranges, so compatibility must be determined by the radio model and original knob design.

These Becker radio families were also installed in select BMW, Ferrari, Land Rover, Range Rover and Mercedes-Benz vehicles. Fitment in those vehicles depends entirely on the specific Becker head-unit model—not merely the vehicle make or year.

Important Compatibility Notice

Check the following before ordering:

• Radio model printed on the faceplate
• Shape and size of the existing knob
• Control-shaft diameter
• Underside mounting design
• Porsche number 99664590100, when available

These knobs replace the removable exterior pieces only. They will not repair an internal rotary encoder, electrical volume-control fault, erratic volume changes, or other radio malfunction.

Do not glue the knobs to the control shafts. Adhesive can damage the radio and make future service difficult.

Installation

1. Switch the radio and ignition off.
2. Pull the worn knob straight away from the radio.
3. Align the replacement with the control shaft.
4. Press it gently into place.
5. Confirm that it turns and presses normally without binding.

Package Includes

• Two replacement radio control knobs