Thule products, such as the Thule Snug Tite Hitch Lock # THSTL2 and Thule Cable Lock # TH538XT that you are ordering, are not built with matching locks. In order to match the locks you will want to also order Thule One-Key System Lock Cylinders # TH450200. This includes two matching lock cores, two matching keys, and the master key which allows you to change out the lock cores on your Thule products. I attached a demonstration video for you to check out regarding this one-key system. view full answer...
It's most likely that you've got the BMW roof rack made by Thule, so you can use the Replacement Key for Thule Racks and Carriers - N019 # THKEYN019. view full answer...
First you will need the Stealth Hitches Hidden Trailer Hitch Receiver w/ Towing Kit # SH93VR for your 2019 BMW 540i. This will include a 4-way flat for your tail light functions.
If your boat/trailer has electric or electric over hydraulic brakes, you will be able to connect the 4-way to the Adapter # A10-6034VP. Combining this with the Wiring Kit # 5506 and Brake Controller # RED52VR will allow you to control the trailer brakes along with adding a charge line for the trailer.
If your... view full answer...
For your 2011 BMW 5 Series, you will need the Curt Powered Tail Light Converter # C59236 in order to power your trailer's rear lights. This is a hardwire kit that is confirmed to work with your vehicle that will connect directly to your battery to avoid overloading its sensitive electrical system. I have included the instruction manual for your review.
If you do not want to splice into your vehicle's wiring system, the Tekonsha ZCI Circuit Protected Vehicle Wiring Harness, part # 119250KIT... view full answer...