A lot to go through so I will address each in turn.
1 - I don't understand why you could splice onto BCM pin 17 and not pin 36. I tried that but had to change it. Pin 17 is OK for earlier vans. CCS buttons will probably not be working yet because of this.
2 - As long as the fuse is connected to a supply with a load on it and is turned on and off at the right times with the key it should work. If wrong you will get an exclamation mark in the display when CCS is used.
3 - ECU coding requires an up to date version of VCDS or use VCP.
4 - Byte 15 bit 0 only used for high spec radios so probably not needed. If set and not needed (like on mine) it does not affect anything.
5 - Byte 17 bit 2 I have not found out what this is for but set it anyway.
6 - Byte 29 bit 6 set this if you have to move the BCM wire from pin 17 to pin 36 - which I expect you will need to do.
7 - No need to change the subsystem coding if your MFSW does not have flappy paddles. Where did you see B4FFFF? I think it should be B0FFFF without paddles or B1FFFF with paddles on a van with a DSG.
8 - The stereo seems to work with or without any coding.
9 - Where have you been told about the adaptions? I did not have to do these.
10 - The stereo is being worked by the BCM wire on pin 17. Once you swap it to pin 36 and set Byte 29 bit 6 all the buttons and the horn should work.
11 - With the ignition on, you should see the CCS setting in the bottom left of the display. The speed can be set with the silver rocker switch in increments of 5 MPH even without the engine running. The display will time out after a few seconds but reappear if a CCS button is pressed. The green CCS active light will only work when moving and CCS is engaged. You can use VCDS to check the buttons are working as well.
So basically you should be almost there. I think you need to change the BCM wire from pin 17 to pin 36 and code Byte 29 bit 6 and maybe Byte 17 bit 2. The hardest part will be getting the ECU coded as you probably need another cable or hopefully just update the firmware on the one you have. then if your fuse is connected to a suitable supply (I used one on the light switch) it should work.
Post No. 5 details my similar problems.
1 - I don't understand why you could splice onto BCM pin 17 and not pin 36. I tried that but had to change it. Pin 17 is OK for earlier vans. CCS buttons will probably not be working yet because of this.
2 - As long as the fuse is connected to a supply with a load on it and is turned on and off at the right times with the key it should work. If wrong you will get an exclamation mark in the display when CCS is used.
3 - ECU coding requires an up to date version of VCDS or use VCP.
4 - Byte 15 bit 0 only used for high spec radios so probably not needed. If set and not needed (like on mine) it does not affect anything.
5 - Byte 17 bit 2 I have not found out what this is for but set it anyway.
6 - Byte 29 bit 6 set this if you have to move the BCM wire from pin 17 to pin 36 - which I expect you will need to do.
7 - No need to change the subsystem coding if your MFSW does not have flappy paddles. Where did you see B4FFFF? I think it should be B0FFFF without paddles or B1FFFF with paddles on a van with a DSG.
8 - The stereo seems to work with or without any coding.
9 - Where have you been told about the adaptions? I did not have to do these.
10 - The stereo is being worked by the BCM wire on pin 17. Once you swap it to pin 36 and set Byte 29 bit 6 all the buttons and the horn should work.
11 - With the ignition on, you should see the CCS setting in the bottom left of the display. The speed can be set with the silver rocker switch in increments of 5 MPH even without the engine running. The display will time out after a few seconds but reappear if a CCS button is pressed. The green CCS active light will only work when moving and CCS is engaged. You can use VCDS to check the buttons are working as well.
So basically you should be almost there. I think you need to change the BCM wire from pin 17 to pin 36 and code Byte 29 bit 6 and maybe Byte 17 bit 2. The hardest part will be getting the ECU coded as you probably need another cable or hopefully just update the firmware on the one you have. then if your fuse is connected to a suitable supply (I used one on the light switch) it should work.
Post No. 5 details my similar problems.
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