Installing Rear Dash Cam - Mazda CX3 Forum
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post #1 of 14 Old 12-07-2015, 06:42 AM Thread Starter
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Installing Rear Dash Cam

So I decided to buy a Blackvue DRW650 2 channel Dash Cam and while the front installation is pretty straight forward I am not too sure how to tackle the CX3 lift gate.

I have managed to hide the wire behind the trim all the way to the rubber seal at the back (left hand corner of picture) For a more professional install look I want to now fish the wire through one those rubber grommets for the brake light but I don't know how to remove the tail gate trim without breaking it. I noticed there is 4 clips on each side of the tail gate but I am not sure what is holding it in place in the middle after prying those open and I don't want to force in fear it will just break off?

I also noticed the interior roof trim at the back has these small round plastic fasteners (4th picture) Is there a screw under these if I pry them open or should I just leave them alone?

Has anyone else installed a rear dash cam on a CX-3 with any information on how to tackle this such as removing trim and best location for camera?
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post #2 of 14 Old 12-07-2015, 08:26 AM Thread Starter
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So I have worked out those round plastic fastners on the interior roof can be popped out if you gently pry them with a flat head screw driver. As for the tailgate there seems to be a center clip holding it in place and still not sure of how to pop it out without breaking it.
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post #3 of 14 Old 12-07-2015, 09:43 AM
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Pulling your new car to bits? Shocking. What took you so long ;-)

I installed a rear camera too. I ran the USB cable round the back door and through the right side trunking to hide it. If you wriggle it loose you will be able to feed the cable out through the top of the door and under the roof liner. I think I put a bit of stiff wire through then taped the small end to it. Warm soapy water will help lubricate it. As for the trim, you can get that centre clip out as Ive done it on the front A pillars for the front camera install. You just get a small pick tool or screwdriver and squeeze the little legs in each side at a time but for the rear, I didn’t bother, I just left it hanging;



My camera came with a 10ft lead so I also had to run a power supply to the back of the car. I thought there must be a 12V ignition feed but unless the US spec is different to the UK, don’t waste your time looking - there isn’t. I ran a wire form front to back under the sill capping;



I terminated it at a lighter socket inside the cavity where the jack is so I didn’t need to butcher the camera lead. You then need to consider the location of the camera as the first sign of rain and that back window gets filthy. It needs to be high enough so it falls inside the sweep of the wiper.



and this shows the location of the mount of an 0805 camera;



Keep in mind, when the back door is open, the bottom is at the top. Also remember that the trim at the top of the door is razor sharp so take care with it.
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Currently CX5 SportNav 2.2 diesel automatic and AWD.
Formerly CX3 SportNav 1.5 diesel automatic and AWD.

All advice is given in good spirit and taken entirely at the readers own risk. WORK SAFELY. 2018 anchorman

.........and another thing"
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post #4 of 14 Old 12-07-2015, 01:06 PM Thread Starter
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Thanks Anchorman those pictures were very helpful. Yes it is kinda fun when you pluck up the courage to start pulling a brand new CX3 to bits. Took me about 4 weeks to convince myself if I have a real think about how to pull things apart it won't break. It is almost like discovering a new car underneath and understanding why the engineers have put things in certain places.

That is interesting that you have worked out the camera is better towards the bottom I might have to try different positions than right at the top. My cam is powered by the front dash cam and the manufacturer seems to have given just enough cable so it will be tight fit. Because of those curtain airbags I had to route my wires at the bottom like in your pictures which uses slightly more cable.
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post #5 of 14 Old 12-07-2015, 06:28 PM
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I wanted to install a rear as well, but when I did the same to my 2011 Mazda 3, the trim pieces started to rattle over time despite the clips and everything still bring very snug. I vowed to never remove a Mazda trim piece again. I sound deadened the doors and the doors over time also started to rattle! I'll only install a front facing dash cam and maybe a rear one if I can find a way to ceiling mount it and just tuck the wires in the headliner
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post #6 of 14 Old 12-07-2015, 08:38 PM
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Originally Posted by Trixstar View Post
I wanted to install a rear as well, but when I did the same to my 2011 Mazda 3, the trim pieces started to rattle over time despite the clips and everything still bring very snug. I vowed to never remove a Mazda trim piece again. I sound deadened the doors and the doors over time also started to rattle! I'll only install a front facing dash cam and maybe a rear one if I can find a way to ceiling mount it and just tuck the wires in the headliner
Id like to say your concerns are unfounded but in particular, that bit of trim at the top of the back door did start to rattle after I disturbed it (well never noticed it before, put it that way!). Now maybe I could have sorted that out by opening the clips but what I did was to pop the trim off and pack in some very soft foam which placed slight outward pressure and the noise stopped.

Currently CX5 SportNav 2.2 diesel automatic and AWD.
Formerly CX3 SportNav 1.5 diesel automatic and AWD.

All advice is given in good spirit and taken entirely at the readers own risk. WORK SAFELY. 2018 anchorman

.........and another thing"
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post #7 of 14 Old 12-07-2015, 09:28 PM
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While I was mucking about in the boot (trunk!) today, I took a photo of my extension socket in the jack enclosure. It is stuck to the side panel with mega strong double sided sticky and it solves another little CX-3 weakness by giving me a spare accessory socket and some USBs in the back;


Currently CX5 SportNav 2.2 diesel automatic and AWD.
Formerly CX3 SportNav 1.5 diesel automatic and AWD.

All advice is given in good spirit and taken entirely at the readers own risk. WORK SAFELY. 2018 anchorman

.........and another thing"
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post #8 of 14 Old 12-08-2015, 06:50 PM
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I'm glad all US cars got rear cams. CX-3 really needs them.
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post #9 of 14 Old 12-08-2015, 07:32 PM
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Originally Posted by Soraia View Post
I'm glad all US cars got rear cams. CX-3 really needs them.
Err, I think you might be talking about something else

Currently CX5 SportNav 2.2 diesel automatic and AWD.
Formerly CX3 SportNav 1.5 diesel automatic and AWD.

All advice is given in good spirit and taken entirely at the readers own risk. WORK SAFELY. 2018 anchorman

.........and another thing"
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post #10 of 14 Old 12-08-2015, 11:12 PM Thread Starter
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Originally Posted by Soraia View Post
I'm glad all US cars got rear cams. CX-3 really needs them.
Yes other countries CX3 have a rear cam too which guides you when you put the car into reverse. This thread is about installing cameras commonly known as dash cams that record your car when it is driving or in parking mode such as away from your car which is becoming essential to protect yourself from insurance fraud and shady people who may want to damage your vehicle.

My personal opinion after using the Dash cam is I can't believe car manufactures are not hard wiring this equipment into cars or offering it as an option to greater improve safety. I predict with all those other cameras for Smart City Brake Support, reversing cameras, etc. give it another 5 or 10 years dash cams will become standard equipment in cars.
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