cpkdude Posted January 12, 2011 Report Share Posted January 12, 2011 I'm thinking of adding a rear view camera just for the hell of it. So, cost won't be very high. I will likely pick up a camera built specifically for my 2007 Mazda 3 (chinese - Ebay). These are between $30 and $80, depending on CMOS or CCD. In order to have the ability to A:) trigger the reverse screen while in reverse, and B:) be able to switch to the screen when in other gears, how many wires need to be present on the camera itself? I know that red usually goes to the tail-light power, and black is ground, but what gets hooked up to the screen for full-time viewing? Quote Link to post Share on other sites
VBLUE42 Posted January 13, 2011 Report Share Posted January 13, 2011 I know that red usually goes to the tail-light power, Wrong! Quote Link to post Share on other sites
cpkdude Posted January 13, 2011 Author Report Share Posted January 13, 2011 Wrong! is that your best, constructive answer? I don't mind learning from someone who likes to teach. Quote Link to post Share on other sites
VBLUE42 Posted January 13, 2011 Report Share Posted January 13, 2011 It needs to be powered from the head unit. Quote Link to post Share on other sites
rgarjr Posted January 13, 2011 Report Share Posted January 13, 2011 The red lead doesn't go to the tail light, it goes to a ignition switched power source. I don't know what u mean by what gets hooked up to the screen for full-time viewing. Quote Link to post Share on other sites
cpkdude Posted January 13, 2011 Author Report Share Posted January 13, 2011 The red lead doesn't go to the tail light, it goes to a ignition switched power source. I don't know what u mean by what gets hooked up to the screen for full-time viewing. on another thread, a user complained that when in reverse, an image appeared on the Pioneer. But when he "selected" the rear-view camera, in any other gear besides reverse, he got a black screen. I would like the ability to have both. Is that reliant on how many wires come from the camera, or are all cameras created equal in this regard? And, what would be the correct wiring to achieve both situations? thanks Quote Link to post Share on other sites
cpkdude Posted January 13, 2011 Author Report Share Posted January 13, 2011 It needs to be powered from the head unit. and if the unit is powered solely from the head unit, and not from a tail light, then the Pioneer can display an image in any gear, in addition to automatically switching when in reverse? Quote Link to post Share on other sites
BorisM Posted January 13, 2011 Report Share Posted January 13, 2011 on another thread, a user complained that when in reverse, an image appeared on the Pioneer. But when he "selected" the rear-view camera, in any other gear besides reverse, he got a black screen. I would like the ability to have both. Is that reliant on how many wires come from the camera, or are all cameras created equal in this regard? And, what would be the correct wiring to achieve both situations? thanks It most likely means that the camera is powered by the reverse light, so when you simply switch the head unit to camera's input, it still is not getting nay power. Hence no picture. Connect the camera correctly, and it should not be an issue. Quote Link to post Share on other sites
cpkdude Posted January 13, 2011 Author Report Share Posted January 13, 2011 It most likely means that the camera is powered by the reverse light, so when you simply switch the head unit to camera's input, it still is not getting nay power. Hence no picture. Connect the camera correctly, and it should not be an issue. and "correctly" would be to a constant 12v source? Quote Link to post Share on other sites
1loudls Posted January 13, 2011 Report Share Posted January 13, 2011 and "correctly" would be to a constant 12v source? no, if the camera is connected to constant, then the camera would be on all the time and would kill your battery every day. you need a camera that has two wires(power and ground) and a video out RCA, thats it. ground the ground wire, hook the power wire up to a ACC source (the easiest one is the red wire at the radio) that way every time the car is turned on the camera will be also, then you can select the camera as a source at any time you would like, then there is a reverse wire from the radio that need to be connected to the car so that the radio knows when the car is in reverse and will switch automaticly. it really is that simple Quote Link to post Share on other sites
cpkdude Posted January 13, 2011 Author Report Share Posted January 13, 2011 no, if the camera is connected to constant, then the camera would be on all the time and would kill your battery every day. you need a camera that has two wires(power and ground) and a video out RCA, thats it. ground the ground wire, hook the power wire up to a ACC source (the easiest one is the red wire at the radio) that way every time the car is turned on the camera will be also, then you can select the camera as a source at any time you would like, then there is a reverse wire fromt ehradio that need to be connected to the car so that the radio knows when the car is in reverse and will switch automaticly. it really is that simple ah, that all sounds simple except for the last bit - do you know where the reverse wire from the radio gets connected to? You said "the car". Where on the car. thanks Quote Link to post Share on other sites
VBLUE42 Posted January 14, 2011 Report Share Posted January 14, 2011 The reverse light. Quote Link to post Share on other sites
1loudls Posted January 14, 2011 Report Share Posted January 14, 2011 yea the reverse light itself is the easiest place to get it at since the camera has to go back there anyway, some times you can find the wire somewhere else but its usually a lot harder to find and you will need vehicle wiring diagrams Quote Link to post Share on other sites
cpkdude Posted January 14, 2011 Author Report Share Posted January 14, 2011 yea the reverse light itself is the easiest place to get it at since the camera has to go back there anyway, some times you can find the wire somewhere else but its usually a lot harder to find and you will need vehicle wiring diagrams ah, OK. So the Pioneer actually connects to the reverse light, as opposed to connecting to the camera in any way? Quote Link to post Share on other sites
1loudls Posted January 14, 2011 Report Share Posted January 14, 2011 yes Quote Link to post Share on other sites
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