I wouldn't cut or modify the original light cable. To allow this problem I use the cable of my broken vento headlights, and i make a self p&p connection
Easy and fast
First stage ohne grill..
Just arrive at home the complete schaltknauf audi TT oem, to replace my old ABT schaltknauf
Change new heating radiator Placing audio wiring Placing ZV wiring Washing the dashboard
using the door connector, i plug the audio woofer wiring and the zv wiring
and finally placed the front cross over (i think is better place here than inside the dashboard. more easy to check), and also placed a positive multiplier for front and rear amplifier
After a deep cleaning with auto shampoo and warm water , i fitted the carpet (now seems new). It's well positioned also with all the antirorhdammmatte. Looks good for me
Now start one of the best parts of the rebuid: das inneraum. I love fittin all new, fresh, cleaned and modified parts...and i love too much leather. And thinking that my recaros will return with new leather is more exciting the job
I apply a rubber on the rear woofer housing to prevent any noise.
Finally i cable woofer and tweeter (these last was modified to fitting on oem tweeter housing)
And now the rear door trim are finally on board. I fitted them without trouble also with the extra add of insulating material. Every time that i work on my GTI i'm really pleased to see the perfection how is build this car from vw. For me this golf is the best golf ever!