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2014 ATS 2.0T Performance
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Discussion Starter #1
Or two hard-wired accessory electronics of your choice, I suppose. For your enjoyment, I have summarized the long-winded post I wrote to the basic points:

- I used an add-a-circuit to tap into the heated steering wheel power at fuse #25.
- That accepts 2 mini fuses, so I used two 7.5A fuses and got the steering wheel and the radar detector working.
- I also want to hard-wire a dash cam (via a 12V-to-5V USB step down), but I can't find other fuses with switched power.
- I don't want to get into the overhead power sources because the USB converter takes up space and I don't want to splice any stock wires on my lease.

And now the questions:
- Is there another switched power source at the instrument panel fuse box?
- Can I just tap the dash cam power into the same circuit #25?
-- If necessary (it might not be), is it safe to replace the two 7.5A fuses with a 20A (or a 15A + 7.5A) to power all of these devices? Or am I just asking for a fire or some fried electronics?
- Instead, since the radar detector cord has an inline fuse, can I just wire that directly into the circuit breaker CB1 for retained accessory power (thus freeing up the space at #25 for the camera)?

I'm much better at using electronics than I am wiring them, so I appreciate any tips.
 

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I would not put a camera and radar detector on the same circuit. Just tap into the overhead wiring and wrap it with electrical tape when you turn it in. It's not going to hurt anything.
 

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I wired my dash cam to the side fuse box and my radar scanner to the mirror.

to add more detail, the dash cam is wired to the fuse called out as "battery". this supplies power even when the car is off. i need it for parking mode. but i have a device (magic box is what its called) that cuts power after the car battery drops below a certain voltage. this comes with blackvue brand dash cams.
 

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2014 ATS 2.0T Performance
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Discussion Starter #4
I would not put a camera and radar detector on the same circuit. Just tap into the overhead wiring and wrap it with electrical tape when you turn it in. It's not going to hurt anything.
Well I would consider that, but for the radar detector, I'm using an Escort SmartCord, which has one wire going to the detector and another wire going to a remote mute button, which I've mounted near my knee on the side of the center console. I'd have to do a lot of ugly splicing and extending to tear apart that SmartCord package for that purpose. And as for the dash cam, I've ordered a particularly long cable to convert the 12V DC power to 5V with a mini USB terminal. The converter itself is about the size of a lighter, plus 10' of cable. So, I'll have to cut and splice that as well, plus I have to hide that little box, and I doubt they would have left much room in the cover for the rain sensor and such (though I haven't yet opened it up). If there's room in there, then I guess that will be my best option.
 
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