Where to plug Toyota QC3.0 USB Panel
If you're looking where to plug the cable above, we have two options:
1. That white plug will be the same as the one on the back of the factory cigarette plug so if you can access that and you can just unplug it and plug that in as it is a piggyback cable.
2. If that is too hard to access, you can just snip off the plug and connect the Red wire to ACC power and the Black to GND to the head unit. (
see related article for the head unit's wiring diagram)