Thx for the details.
One question on non folding rear seats I have. How can the wiring can run from door sills into trunk? Is there a easy way? I am clear on front to back but not clear on back into trunk!
2009 535i BSM/NB/Prem pkg, Sport pkg, comfort access, Navigation, Sport Transmission with Shift Paddles, PDC, Heated Front Seats, iPod and USB Adaptor, Satellite Radio, BSW Stage 1 Speaker upgrade, JBL MS8 DSP, Technic Harness and BMW Individual co-axial center speaker ==> Superb Custom LOGIC 7, New Michelin Pilot Sport A/S tires! Route 66 Extended Warranty till 5+yrs:1/26/2018 or 100k miles, Beyern Spartan Chrome Concave Rotary Forged Wheels 18x8.5 ET15, 18x9.5 ET25.