Super easy..The hardest part is getting the damn pin out of the connector...They have you pull the grey wire (interior door lamps) from the BCU plug and splice this in, then run another line over to the PS foot well, with the ground going to the DS B pillar.. Tomorrow I'll see if I can get a pic of it.. The only thing I need to change (I highly recommend doing) is finding out where the BCU wire is that controls the lighting from the day/night sensor and tap into that instead, I say this because these light up during the day and they look pink, and that can't stay...