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there are several aftermarket modules on ebay that can be wired in and give you the 5v you want. Many have the usb you want for phone charging. check ebay for dash cam power modules. That’s where i got mine. you can splice into the console lighter circuit
Your best bet would be to just put in a 12v dual usb charger. They have some pretty low profile ones that should fit in there fine. I've wasted money on cheapy ones before, I recommend getting a good name quality brand to make sure it charges devices quickly. I only use Anker these days.
Shoot, you are right. I'm a lot of help in this thread.
I was thinking the opposite because I had a FM modulator plugged into mine and wondering if I could make it 'switched' power for the modulator and/or dash cam.