Yes, we do use them. As indicated in the previous post, on many newer cars you really have no choice but to use these, or wire in separate bulbs. Wiring into existing tail lights with diodes, on some newer vehicles can be a VERY bad idea, and lead to costly repairs not covered by warranty.
We mount the magnetic lights INSIDE the car, on the rear shelf right behind rear headrests. Small piece of Velcro stuck underneath the lights holds them in place very well. This works great on most sedan type vehicles, and obviously completely eliminates any risk of scratching paint.
Beauty of this approach is, you get the best of all worlds - A permanent installation that can stay in place all the time as lights are not in the way or block rear vision. Yet, is very inexpensive and can be quickly and easily removed and put into next vehicle when/if you trade. No need to spend bunch of $$ on wiring kits that you will probably have to purchase and install all over again when you trade vehicles. And, no tapping into vehicle's wiring at all.
Will and Cheryl
2021 Newmar Baystar 3014 on F53 (7.3 V8) Chassis ("Brook")
2018 Jeep Wrangler JK ("Wilbur")
