I own 2013 EU golf MK7 with bulb rear lights and my goal is to upgrade to MK7.5 OEM dynamic taillights
I bought following wires:
vw official retrofit harness - 5G1052200A and MK7 to MK7.5 harness from aliexpress
https://www.aliexpress.com/item/1005003106303802.html?spm=a2g0o.order_list.0.0.6d8b18025C0XkT
I successfully installed and connected aliexpress harness to find out that im missing alot of wires from BCM (actually 5...) but official VW kit only contains 3 wires (and 1 small one...)
do i really need to create 2 more wires somehow or is there any trick i can pull in order to make it work?
edit: based on erwin data it looks like 23SL and 24SL should be there..
following are working
20BR (A71) - Breaking Light
18BLK (A60) turn signal left
28RFL (A64) Reverse light
26NSL (A72) Fog Light
29RFL (A64) Reverse light
21BR (C8) - Breaking Light
19BLK (C31) turn signal right
following are missing
27NSL (C6) -> common to all 4
23SL (C10) - Position Light
16BLK (C9) inner turn signal left
17BLK (C3) inner turn signal right
24SL (A65) - Position Light
these wires are not really there.. also old connectors can only handle 4 more wires... so im not sure how to handle this 5th wire which is not there at all...
EDIT2: so for other guys who decided to go this route:
23SL and 24SL are connected to OEM INNER connector on pin 1 then everything starts to make sense
and chinese reduction is connecting INNER pin 1 to pin 1 on facelifted connector