I have been hooking up a Bulldog Security system keyless entry and remote starter on my 1986 560SL. The system is a Bulldog model RS1100. Everything works good but I have several questions about the installation that I would like answers for, because I would like to do things differently on my next car.
1) The directions say to connect 2 fused red wires to 2 terminals on the ignition switch that are "always hot". They also say to connect these wires as close to the ignition switch as possible.
Why is it important to be as close to the ignition switch as possible. I would much prefer to take power from under the hood. This would offer several advantages:
- The hot wires can be conected directly to a screw terminal block under the hood, without compomising any wiring harneses
- This also allows me to place the fuses under the hood where they are accesable
2)
Why are there 2 "always hot" wires. On this car both of the always hot wires trace directly back to a common screw terminal on the headlight switch. So why 2 wires. Why not just one big wire. This one hearlight switch screw terminal is another point that I can take power without compromising the harness.
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John Roncallo
Fuse must be near the source. Lets say the wires are pulling more current than they can handle. If you run a wire all the way from the battery to the inside, and the fuse is next to the brain of the alarm, that is a long distance before the fuse pops. By that time, you already have a fire.
You can connect your wires at the battery IF you have the fuses within 12inches from it. I recommend about 6inches.
Some cars have 2 hot wires, each with different current or the same current. One reason is that one powers the car, while the other powers the accessory. Another reason is because they didnt want to go with a heavier gauges, so they went with 2 samller wires.
There are also alot of other reasons, enough to write an essay.
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Note: You Always Dont Get What You Pay For.