Images:
https://imgur.com/a/cNU7AYG
So I just installed them today and they look great and work well as driving lights and brake lights. 2012 Mazda 5 Sport.
Interesting to see that the rear lights aren't bolted in on the inside at all. Just unscrew the phillips screws and pull above there to release the white hidden nylon screw, then pull straight back. Easy to do. Not much that can be broken easily.
I didn't take off the bumper at all. If you have these two tools, it will make it really easy and fast. Everyone should have a miniature ratcheting screwdriver $7 and a long reach grabber $13. The ratcheting screwdriver allows you to take off the reflector cover up underneath the driver side by the exhaust pipe by feel since you can feel for the screw and angle screwdriver on it at the same time, while also leaving you easily enough space to get it off and then back on. The long reach tool is used to pull the electrical wire up at the end through the bumper hole to plug it in.
Btw, I used an industrial razor blade to cut a small hole on the back of the bumper reflector housing area so the electrical wire wasn't pinched at a 90 degree angle too much. The reflector housing black plastic piece that you put back on has enough space to easily pass the wire through though.
Splice wire taps are great for the connection. Also, this is the time to get a wire crimper if you don't have one.
https://www.amazon.com/dp/ (commissions earned)
https://www.amazon.com/dp/ (commissions earned)
Wiring:
Black on black.
White on Green with White Stripe
Red on solid green wire
I also used some duct tape to keep the wire taps stuck in place on the inside lens housing so no rattles. Seems like more than enough space in there for it in there.
Let me know if you have any questions!