Hardwire Radar and Cam

imsoselfish415 · December 14, 2022

On 4/7/2022 at 5:06 PM, Gunndy Gaming said:

I don't have auto-dimming mirror. Didn't take the mirror cover off to see if the wiring and everything is still there that I could have tapped into anyway. If I run into any issues or end up needing to re-wire anything down the road I'll keep that in mind.

On a side note, trying to figure out how I'm going to mount the rear camera. Have the sliding rear window, so can't mount it to the window itself. Trying to find a bracket or something else that might allow me to mount the rear cam to that I could then mount to the trim above the rear window.

There is also a tie town point (I assume for child seat) behind the middle head rest that sticks up slightly that I could use, but I would have to imagine that a rear camera will work better mounted at the top of the window than at the bottom.

I mounted one externally and ran it through the 3rd break light break light with 3m double sided tape. been on for months never failed. Iran the wiring through the headliner and out the back install was a piece of cake.

milleda31 · December 14, 2022

Barton Cole · August 27, 2023

Thanks for all the advice. I used F2 and F46 but where the heck did you put the ground? Had to drill a screw into the metal frame to mount the ground. It was the hardest part of the install.

agoldberg308 · August 30, 2023

Anyone with a 2023 Sierra 1500 Denali wire up a dash cam? F46 is 'not used' in my truck. I've also not had any tester light activate on any empty slots so far. Not sure if they changed something with the Denali trim level or what.

F22 is available (Heated Steering Wheel) which I assume could be used for the 'accessory' wire. Just need to know what to use for the 'always on' or just pick one of the many that seem to be always powered no matter what I do.

I don't have any three leg fuse taps on hand. It was enough trouble getting the ones for the new (tiny) fuses. If anyone can tell me what those are called, and/or where to get some, that would be helpful.

I've only had the dash cam since before my truck arrived (January) and just got around to installing it. Sucks that I cannot get it to work properly with the hardwire setup. Basically, so far, it simply always stays on. Luckily, I've been checking on it often enough and set the battery drain limit on the kit to the highest voltage (12.4 IIRC). I'd still like to get this figured out before the coming weekend so that it's one more thing off my list.

Of course, I just looked at the diagram from the inside of the fuse panel cover plate and compared against what the manual (downloaded from GMC) shows. Yup, not the same. Connected "Accessory" line to the F22 fuse (can only put the add-a-circuit in one way ). Just need to get a solid battery feed to use. Hopefully it will allow the dash cam to function normally that way.

Picture of the inside of the cover panel:

Looks like I cannot use any that show "NOT USED" since there's no connections to tie into there.

BTW, for grounding the setup, there's a stud protruding below the glove box (in the upper foot well area). I added a nut after that one (since the washer was connected to that nut and I didn't want to crush the wire connection). Put a little blue thread locker on it and done. Solid ground connection without any drilling involved.

Edited August 30, 2023 by agoldberg308

jaxcam02 · September 1, 2023

Gen5DIY.com has wiring harnesses that connect into either the auto mirror or moisture sensor plug under the overhead console. That was you don't have to screw around with the wiring yourself besides unplugging and plugging in some connections.

agoldberg308 · September 1, 2023

5 hours ago, jaxcam02 said:

Gen5DIY.com has wiring harnesses that connect into either the auto mirror or moisture sensor plug under the overhead console. That was you don't have to screw around with the wiring yourself besides unplugging and plugging in some connections.

That might be OK IF I didn't already have the hardwire kit already run with the wires hidden. Not to mention I'm not looking to spend another $100+

-edit- Ok, so ~$80 due to Labor Day sale... Another $10 for better than pack mule shipping.

From my testing yesterday it seems like the hardwire kit (from the dash cam maker) requires both battery and accessory connections be made before it provides power to either. I tried running with just the accessory feed connected and no power was provided to the dash cam.

I'm tempted to try calling the dealership to see what fuses to tap for this setup. While I don't normally need the cam running when not driving, I like having the option of enabling it later.

Edited September 1, 2023 by agoldberg308

TunaNoCrust · January 9, 2024

On 4/2/2022 at 7:32 PM, gemarsh said:

Where are you mounting the radar pickerupper? Do you have power going to your rearview mirror? I tapped the pins for power on the mirror for mine.

I made this same connection: red to red and black to black. For some reason, my R8 isn't powering up. When I metered the pins, I got 0vdc. Is there a fuse for the plug going into the mirror? I checked all the fuse boxes and didn't see any blown. So I overlooked it, or maybe I don't have the power/fuse for the basic mirror?

gemarsh · January 9, 2024

2 hours ago, TunaNoCrust said:

I made this same connection: red to red and black to black. For some reason, my R8 isn't powering up. When I metered the pins, I got 0vdc. Is there a fuse for the plug going into the mirror? I checked all the fuse boxes and didn't see any blown. So I overlooked it, or maybe I don't have the power/fuse for the basic mirror?

It's been awhile, but I believe I found 12+ keyed power on the purple w/white tracer wire. Black was 12-.

agoldberg308 · January 9, 2024

13 hours ago, TunaNoCrust said:

I made this same connection: red to red and black to black. For some reason, my R8 isn't powering up. When I metered the pins, I got 0vdc. Is there a fuse for the plug going into the mirror? I checked all the fuse boxes and didn't see any blown. So I overlooked it, or maybe I don't have the power/fuse for the basic mirror?

IIRC, the 'basic' mirror (not part of the technology package) doesn't have power. There should be a sensor that is powered (with key/ignition) that you can use.

Gen5DIY has a P&P harness for the 'manual dimming mirror' hardware.

At this point, I would just go with the P&P connection option (you can get the plug to feed the cam that you need on it).

I did attempt to use the hardwire kit from the dash cam company I'm using. Epic failure due to there being just ONE switched fuse in the 2023 Sierra 1500. All other fuses inside the cab are powered all the time. I didn't turn the cam off one time, and it killed my battery over the span of about four days.

One other thing I'll mention. For the microSD card you're using. Go with one that's made for the abuse a dash cam/security cam will inflict on it. I was running the SanDisk Extreme Pro card. I was getting the occasional 'bad beep' when running the cam (card related). I've changed over to the SanDisk MAX Endurance card and haven't had the fault since. The cam would start recording again, after the beeps, but it was lost recording time (less than a minute). It didn't happen too often, but often enough to be a concern.

vilacr · March 31, 2024

On 1/9/2024 at 9:40 AM, agoldberg308 said:

IIRC, the 'basic' mirror (not part of the technology package) doesn't have power. There should be a sensor that is powered (with key/ignition) that you can use.

Gen5DIY has a P&P harness for the 'manual dimming mirror' hardware.

At this point, I would just go with the P&P connection option (you can get the plug to feed the cam that you need on it).

I did attempt to use the hardwire kit from the dash cam company I'm using. Epic failure due to there being just ONE switched fuse in the 2023 Sierra 1500. All other fuses inside the cab are powered all the time. I didn't turn the cam off one time, and it killed my battery over the span of about four days.

One other thing I'll mention. For the microSD card you're using. Go with one that's made for the abuse a dash cam/security cam will inflict on it. I was running the SanDisk Extreme Pro card. I was getting the occasional 'bad beep' when running the cam (card related). I've changed over to the SanDisk MAX Endurance card and haven't had the fault since. The cam would start recording again, after the beeps, but it was lost recording time (less than a minute). It didn't happen too often, but often enough to be a concern.