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Originally Posted by Scouts Out
F Stop or any of you electrical geniuses........
As I am preparing to install my rear camera, I have a few more questions..... it seems logical to have it wired to come on only when the H3 is in reverse, any reasons out there to do it any different? Anyone? and one last question, how would you suggest to slice into the wire. I have worked on my Triumph wiring before but it is 26 years olds so if I screw something up I simply replace it because all replacements are upgrades to the original Lucas. With my H3, What type of splice would you recommend? I am looking for easy and reliable.
I guess I can fix my rattle in my head liner when I do this also, since Wright can not seem to be able to replicate the problem
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Most of your questions have been answered.
How the camera comes on really depends on the system used. As Marin8703 stated, on our Z1's, it automatically comes on in reverse since the system is signaled reverse by taping into the reverse signal wire that goes to the mirror (the auto dimming mirror undims in reverse). However, we can turn it on to view the back via the camera at any time. I guess this is used to watch your trailer. I find the wide angle too wide to really get a good view of a hot babe in a car behind me.
If you want it only on in reverse, then the brown wire, in the A-pillar going to the mirror is perfect. Just check the wire, there are two wires there and I believe one is hot in ignition On.
As for taping into the wire; I prefer cut and spice using Butt end connectors; however, the T-type connectors mentioned by Lamric are used quite a bit, and seem to be ok. Just use the correct size. For almost all applications, you will need either red or blue.
The reverse wire is 20 gauge so use a red T. If using butt ends, use a blue, to allow room for two wires on one end of the butt end connector, and then strip an extra 1/3 inch off the single wire, and double over the stripped wiring and insert into the other end of the butt end.
Problem with butt ends is you need a crimping tool to properly crimp the ends of the connector.
The best advice I can give is use a high-impedence voltmeter to check the wires you are taping into. For the reverse, the wire will only be hot in reverse. DO NOT USE a 12-volt test light, unless it is designated as high-impedence and can be used on electronic circuits. Normal test lights will allow too much current to be drawn through the circuit, and in case you accidently tap into a computer circuit, you do not want to have it draw too much current; so as to damage the computer.
A high-impedence test light or voltmeter prevents excessive current in the circuit. Not a worry with these wires, since they are direct from the fuse panel through a relay. But in the future....