I have a 2020 GT350 and installed the Opt7 Arrow Turn Indicators. They look good, nice white light, like a fog light, then when you use your turn indicator they go amber and do a sequential flash like the tail lights.
Now the downside I'm working thru. They work fine when the engine is off, they work fine with parking lights on, they work fine when headlights are on, but they don't work in the day time with the lights either in Off Mode or on Auto in the Daylight.
Contacted Opt7 and they sent me an LED Decoder to install in the light (Front Bumper Removal Again, argh..). I'm also educating myself about Forscan to see if I can recode the BCM to have this light on all the time and thus (Hopefully) work in the daytime.
The crazy things we do trying to personalize our cars. Like thinking the map light housing just pops right off so I can install some $15 LED map lights. Wrong, in the 2020 model they use these crazy clips and the map housing breaks before it releases, thanks YouTube Video Guy. So just add $240 for a new map housing to the $15 LED map lights and you have yourself a winner! This causes my wife's eyes to roll when she see's this in the garage. "What was wrong with the existing lights in the first place?"