I'm glad this is working for people. In an earlier post, I included a link to a post I made at another site that is no longer valid. So let me re-create the post here, so that Google will index it.
After reading this post --> https://forums.vwvortex.com/showthrea...1#post72689246
I decided to try setting Central Electronics (09), Byte 25, Bit 1 to on.
Since you can't alter Bit 1 via the Long Code Helper, you need to add "2" to the value of Byte 25 in the long string. So for me, that meant changing in from "84" to "86". (After you make the change, bit 1 should now be set in the Binary window--- it's the blue-highlighted digit above)
Bottom Line: It works! My LEDs no longer drop in brightness when switched from OFF to Parking.