We should probably spin up a new thread. My fault for highjacking.
I have not formulated a plan yet. Seems like an obvious consideration. I'm going to consider leveraging the outputs on my pac audio device and some relays. It seems to know when the turn signals are active. Not sure if it knows when hazards are on. I'll be slow at this since I'll install the side cameras while I'm at it. I might install the cap and signal without wiring it to make sure I like it first.
PSA: Since I bought my side mirror caps the availability has spread like mushrooms and the price is as low as $30 for the pair. So about 50-60 bucks is going to get you a set of caps and the lights. They all look the same to me so I am sure they are the same supplier with many vendors. Low risk to order based on price I would think.