BMW X3 G01 - Lighting Issue

[Chris Hinds]

I have recently replaced the speakers in my HK equipped G01 with Focal speakers all round. So far, so good... sound is better, all the channels work. The only thing I've noticed since is that my comfort headlights no longer behave. They enable/disable as expected when you turn them on and off in iDrive, and when you unlock the car, they come on as expected, for the length of time set. However, when you lock the car, instead of staying on for the set time, they go off immediately after a brief "flash" of brilliance.

I'm assuming this is something to do with the Body Domain Controller... but is it possible I've knocked a cable whilst fitting the speakers and it's causing a loop to get upset? I'm assuming it's not actually broken broken because all the settings work - I can cycle the interior lighting, I make everything behave as the menu, it's literally just the comfort lighting timing that's weird.

Thanks for any advice!