How does the RGB work with regards to existing wiring? Can you swap them out for the standard lamps on the existing loom, or do you have to replace the existing loom and tap the feed for the door RGB lighting? Just thinking I've already run the extra wires for non RGB rear foot well lights (which spur off the fronts) - and really can't be bothered pulling all the wiring and refitting a new loom!
It's pretty straightforward.
The RGB LEDs have 3 wires: 12V, GND, and LIN.
The LIN-bus is a wire that comes from the BCM, Pin 29 (see here:
https://www.drive2.com/l/594408631433191482/)
You can keep using the 12V and GND from the original footwell lights. However... you need to do some
coding to make sure the LEDs behave well.
Maybe I should write a
guide for this, and put it in
resources,
But basically this is what you need:
- Module 9, adaptation, channel "Leuchte30FR". FR Stands for Fussraum here, which means footwell.
- Make sure the bulb type is 36 - LED kleinleistung.
- Light function AB: Fussraum / Footwell
- Dimmwert AB: 127 (default was 100, but needs to be 127 to prevent dimming of the LEDs by lowering the voltage.
Then, go to channel Ambient_lighting_in_slave_groups and make the following changes:
- verbauinfo group 13: single color
- lichtfunction group 13: Footwell
- verbauinfo group 14: 3_not_defined
- lichtfunction group 14: Footwell
Then make sure you set p_ambienteumfang_mehrfarbig_HMI to 100, to enable the footwell to be RGB instead of single color.