Hardwiring Dash Cam with Add-A-Fuse (1 Viewer)

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Jul 7, 2015
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Location
Florida
Hey guys,

I originally made this post because I was having issues doing a SIMPLE hardwire of a dash camera. So I figured id write the details down while they are still fresh in my head because I did wayyyy too much digging to find a stupid problem.

I hate messy cables and I think the dash cam is a no brainer for all the city driving in Florida I do. Under $100 insurance policy.

I mounted the camera behind the rearview mirror. I never seen it while driving.

Using Interior trim removal tools.
$5 on amazon.
They look like this

interior tools.PNG


Very simply run a "dash camera hardwire kit" from the center of headliner towards the driver side, down the driver side "A" pillar. Then south down the door rubber door molding/ interior trim pieces.

Mine was a 10ft Mini USB to red (power) and black(ground) wires on the other end. There are two things inline
1. a 12v (truck)to 5v(camera) converter
2. 10 amp fuse

Hardwire kit looks like this.

12vto5v.PNG


Mine did not have that fuse looking thing at the end of the red wire. So I had to separately purchase this.
This fuse looking this is separately called a "Add-A-Fuse"

Looks like this. ATM Mini Blade.

If you end up piggy backing on one you put the original fuse in the bottom slot. and new fuse (aftermarket) in the top slot. I already had a 10amp fuse inline and put another 3amp fuse in the top slot. since I took an empty slot I didn't put anything in the bottom slot.
add a fuse.jpg




This is on my 2004 I had an empty slot. Put the Add a Fuse in it and closed the cover and was done! Super easy.
I used open slot 15

This fuse box is where I got my power. This fuse box is on the left side of the the driver side foot well. Take off the foot rest. and the plastic 1.5ft trim piece off. everything pulls. no tools required. There is a black plastic case over the fuses pictured below.

fuse.jpg




1PWR OUTLET15Power outlets
2CIG15Cigarette lighter
3ACC7.5Instrument panel light
4AM17.5Multiport fuel injection system/Sequential multiport fuel injection system
5DEFOG20Rear window defogger
6AHC-B15Active height control suspension (AHC)
7FUEL HTR20Fuel heater
8POWER HTR7.5Power heater
9AHC-IG20Active height control suspension (AHC)
10EFI NO.210Emission control system
10ECD NO.210Emission control system
11GAUGE110Gauges and meters
12ECU-IG110Multiport fuel injection system/Sequential multiport fuel injection system
13ECU-B110Navigation system
14DBL LOCK15Double lock system
15BATT CHARGE30Trailer charging system
16A/C15Air conditioning system
17STOP15Stop lights
18OBD-27.5On-board diagnosis system
19IDEL UP7.5Idle-up system
20LH SEAT30Power seat system
21DOOR25Power door lock system, Power windows
22SUN ROOF25Electronic moon roof
23RR WIPER15Rear wiper system

Important added note from later in the thread:


Add -A-Fuse plugs are orientataion specific. If you have it plugged in and get no power out of it it's probably because you have it plugged in backwards. Flip it around and point it in the opposite direction and plug it back in and it will work. This is because only one of the blade sockets for each fuse location is hot. The other socket is the load side - no power outputted. It matters which way you plug the Add -A-Fuse in.
 
Last edited:
Are you sure the cam doesn't need 5V (usb?)
 
I just got a dash cam kit and tapped directly into the rear wiper fuse location. Tapped as in i took the red wire, cut of the fuse slot, stripped it bare and stuck it into the same slot as the rear wiper fuse. It'll come on with ACC ON and turn off when car is off. Been months, no issues.

thedashcamstore.com_dash_cam_quick_install_kit_composite_graphic_1275__29593.1433201520.jpg
 
I just got a dash cam kit and tapped directly into the rear wiper fuse location. Tapped as in i took the red wire, cut of the fuse slot, stripped it bare and stuck it into the same slot as the rear wiper fuse. It'll come on with ACC ON and turn off when car is off. Been months, no issues.

thedashcamstore.com_dash_cam_quick_install_kit_composite_graphic_1275__29593.1433201520.jpg

thaks! want to clarify a few things..


Slot 23? that back bottom right corner 15 amp?

you cut the fuse off the hardwire kit line? wrapped the red wire around the fuse and push it back in? no Add-A -fuse dongle?
 
Most of these hardwire kits have a low voltage cut-off. Is there a chance the battery is in a low state of charge? Perhaps try running the engine to see if it comes on?
 
thaks! want to clarify a few things..


Slot 23? that back bottom right corner 15 amp?

you cut the fuse off the hardwire kit line? wrapped the red wire around the fuse and push it back in? no Add-A -fuse dongle?

Yeah i tried to add the fuse dongle and none of my fuse slot would work, i got frustrated and just cut it off and hooked it directly into the fuse and grounded the black wire. Did that with my Tundra, LX, LC, and Benz...none have blown up or caught fire yet.
 
I’m currently using an add a circuit without any problems. The picture you have isn’t the right type of add a circuit obviously.
 
Yeah i tried to add the fuse dongle and none of my fuse slot would work, i got frustrated and just cut it off and hooked it directly into the fuse and grounded the black wire. Did that with my Tundra, LX, LC, and Benz...none have blown up or caught fire yet.
yeah, the same thing is happening to me... i think brownfox just solved the problem tho...


I’m currently using an add a circuit without any problems. The picture you have isn’t the right type of add a circuit obviously.

Its not obvious to me. Why isnt this the right type of add a circuit? it physically fits and its the same one iv used in the past. what are you using and which fuse are you tapping in to?
 
Most of these hardwire kits have a low voltage cut-off. Is there a chance the battery is in a low state of charge? Perhaps try running the engine to see if it comes on?
tried this. nothing when powered on. good suggestion tho.
 
Pull an existing fuse. If it isn’t the exact dimensions of the add a circuit then it won’t work.

These are what I used.

71188298-CC55-4D80-BC7C-9970BAA4274C.png
 
That one. lol. 2005 LC no AHC.

I’m not a wire diagram guy. Do you have a fuse in each slot of the add a circuit, and do you have the device grounded?

9D8F0663-3CF8-4D6E-AD49-16C5F22FF7EE.jpeg


BA4F83FF-0632-4F24-ADC9-C540DAFEF1DB.jpeg
 
That one. lol. 2005 LC no AHC.

I’m not a wire diagram guy. Do you have a fuse in each slot of the add a circuit, and do you have the device grounded?

View attachment 2043099

View attachment 2043100


Damn it!!! Yes I did this exact thing. Same open slot. I tried it. I tried them allll. Something else is going on. Thank you. Do you have an in-line fuse. Thanks for the photos.
 
What’s it grounded to and do you have a fuse in each slot?

I’m out of ideas. Pictures of everything you’re using is the only thing I can think of that would help.
 
Its grounded to a random screw i found down there. Moved it to a more secure shared ground, no change. But i could be having 2 cascading issues here. will try again.

I will take photos after tonight.

My fuse box looks exactly like yours. same gaps.
 

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