Help Installing Front Camera, Reverse Camera, Headrest TV To 2Din Stereo

[2fiddy]

Taking out a Kenwood KDC_152 - Kenwood KDC-152 CD receiver at Crutchfield.com

I bought the removal tools - New Genuine Kenwood JVC Radio Removal Tools KDC 200 KDC 255U KDC 152 Many More | eBay

Planning to install a 2din stereo - 7" 2Din in Dash Car iPod iPhone Stereo DVD Player Bluetooth Touch Screen | eBay

And 2 cameras, 1 for the back, and 1 for the front, both hooked up to stereo, so I can see behind and in front, both cameras are wireless, so no need to run wires thru car. - 420 TVL 1 4" CMOS 7 IR LED Wireless Waterproof Nightvision Car Rearview Camera | eBay

Also bought install kit with wire harness for car - Radio Stereo Install Double DIN Dash Kit Wire Harnes | eBay

It's a 2002 Mazda Tribute ES 2WD.

Lastly hooking a headrest tv for the kids - 9.2-inch TFT Headrest Monitor | Overstock™ Shopping - Great Deals on Blackmore Mobile Mobile Video

Most of it looks fairly straight forward, but how do I hook up the front camera to the set up ?

I was thinking of wiring it to the hazard light/indicator light in the front, so when I'm parking I'd put hazards on, front camera will come on, shift to reverse, rear camera comes on. Also means front camera will come on everytime I use the indicator while driving. Think I can live with that.

But is there a better way ?

I have never installed a car stereo before, so assume I know nothing.

Watched a few youtube videos, but yet to see one with both front and rear cameras to a 2din stereo.

Would also like to have movies on the screen for kids while driving, so need to bypass built in safety feature of radio.

I am in West Los Angeles.

Thanks for reading.

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[Louisiana_CRX 5,000+ posts]

You can run your front camera through an AUX video input since you won't be using it as often and manually switch to it through your source selection on the headunit...

 

[2fiddy]

Trying to have the screen automatically switch

 

[keep_hope_alive Premium Member]

buy something like this

Car Backup Camera AV Switch Front Rear Cam Switch Automatic Reverse Tempgp CCTV | eBay

 

[2fiddy]

This is what I have done so far :

1. Mount reverse camera, pass wire through panel, and connect to reverse light. Red wire to multi colored wire on light, and black to black. Also mounted transmitter on back window.

2. Mount front camera to lip under front bumper, connect to fog light. Red wire to multi colored wire on light, and black to black. Zip tied transmitter.

3. Connect harness for new 2din stereo to adapter harness.

Issues :

1. Antenna from car (2002 Mazda Tribute) does not fit into new stereo - Adapter cable I found on Ebay says for Mazdas from 2008, so no solution for now.

2. Transmitter for wireless camera has a red and black wire coming out, where do these go ?

3. Manual says to join pink parking wire to ground. Is that the thin black wire or thick black wire ?

Pictures Below :

 

[2fiddy]

 

[keep_hope_alive Premium Member]

both the thick black wire and pink wire need to be grounded to the chassis. the thin black wire can join them.

the transmitters need power - so an ignition source for power. connecting them to the reverse and fog lighting won't cause them to automatically switch at the head unit. the brown wire needs to connect to the reverse light (to tell the head unit to switch to that video input).

 

[2fiddy]

both the thick black wire and pink wire need to be grounded to the chassis. the thin black wire can join them.
the transmitters need power - so an ignition source for power. connecting them to the reverse and fog lighting won't cause them to automatically switch at the head unit. the brown wire needs to connect to the reverse light (to tell the head unit to switch to that video input).

Thanks

 

[2fiddy]

Here's my understanding of how all this works so far :

1. The transmitters connected to the head unit need power, so connect red to red and black to ground.

I'm thinking 1 transmitter should work for both cameras, so when in reverse, reverse camera sends signal, transmitter picks up, sends to head unit, when going forward, push button for fog light, front camera sends signal to transmitter, then to head unit. It's the same make and model for cameras and transmitters.

2. Since transmitter needs to be powered, can't connect red from transmitter to brown wire on head unit, for head unit to automatically switch to rear camera view. So will have to switch manually on head unit, or wire brown wire to reverse wire of car.

3. So connecting red wire from transmitter to red from car harness, joining black wire from transmitter to pink wire from head unit, thin black wire from head unit, thick black wire from unit, adding an extension wire to ground in car. 4 wires to ground.

This make sense ?

Why 2 black wires from head unit, 1 thin 1 thick ?

 

[keep_hope_alive Premium Member]

i don't know why that head unit has two ground wires, the manual should say. in theory, if both cameras are the same frequency, then you could use one receiver at the head unit (receivers "receive" the transmitters which "transmit" or send the signal from the camera). but you want to run the front camera on V Aux so it needs a separate receiver.

if both cameras are on the same transmit frequency you only want one camera powered at a time. if it were me, i'd have a 5-pin relay provide power for the transmitters with N.C. to the front and N.O to the rear. The relay coil would be powered by the reverse lights (which also ties to the brown HU wire). the relay common pin and the receiver would be powered by the HU ignition wire. when not in reverse, the front camera would have power through the N.C. relay contact and you can switch to that view with the HU source V Aux. when you put the car in reverse, the relay changes and powers the rear camera and the HU view switches to the V. Camera input.

if you only want to use one receiver then you'll have to add another switch into the mix - one that provides 12V to the backup camera wire (brown at HU). this would bypass the need for the reverse lights to be on and you'd view whatever camera is powered (front is normally powered in my scheme above).

i am headed out of town otherwise i'd sketch up a relay diagram. if you can't figure out what i'm saying above, try to draw it out.

Single Pole Double Throw (SPDT), Single Pole Single Throw (SPST) Automotive Relays

 

[2fiddy]

Thank you

 

[2fiddy]

Sorry, forgot to mention.

With the new direction of just 1 transmitter, I'd have just 1 video input.

So the process would be :

Manually switch to rear camera view on head unit,

put truck in reverse, rear view shows up on screen, back up.

Put car in drive, hit fog light switch, screen should now show front view automatically,

drive forward.

When done driving forward, switch fog light off, put in reverse, then rear view shows up,

back and forth like that till parked.

 

[2fiddy]

Headrest arrived today.

Ned help with power connections.

Has red, yellow and black wires.

Truck has a 12v cigarette lighter socket in back, was planning on cutting a cigarette lighter charger for my phone, and connecting the red and black wires from headrest set up to cigarette lighter charger, and using outlet in back for power.

Would that work ?

What do I do with the yellow wire ?

 

[2fiddy]

 

[2fiddy]

Got everything working, with one slight issue.

Reverse light has 2 wires going in.

I have the black wire from camera to the transmitter grounded in trunk.

Connecting to either of the 2 wires, results in transmitter and camera coming on without car being in reverse, tried both, same result, camera comes on when ignition is in accessory.

I have to manually switch to camera input on head unit, so it's not a distraction, but I don't think the camera will last being on all the time, plus it means one of the cameras will have to be wired to pull of the 2 camera set up.

Help please..