Suggestions for adding a switch

DUI Elite

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I'm going to be adding a master kill switch for all of my CMs next week and I have an idea of where I can hide my switch. The switch itself is going to be very similar to the ones available through LI, except mine will feature a Red LED.

Am I correct in undersand the 3 prong setup to be:

...................I I-- Ground from the devices
..switch->....[I I-- Ground to the vehicle
...................I I-- Power for the LED (can be hooked up to power for the devices)

I know where I plan on adding my switch, but I'm curious how do you make a clean cut? If I don't feel comfortable with it, I might just go to a shop to have them just cut it, while I wire it, but is there supposed to be a template somewhere? The switch from autozone didn't have a template with it.


edit:

:shifty: maybe this would be better in "Questions about Installations" section. ....oops

SEE PAGE 3
 
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Cloud_9

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I'll actually be attempting to put in some switches soon so I'll definitely have to be watching this thread. When I did the cuts for the LIs I used a dremel...small hole...then bigger and bigger until the switch fit snuggly, but not forced.
 

DUI Elite

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literally looks exactly like this but with Red LED. Same size and all.

 

voyager7

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The switch you bought. Is it on / off / on?

A typical 3 wire switch will be power in the center prong and power out one prong or the other.
So it could very well be a on, center off, on.

You can buy just a on / off with a pilot light.

You almost never return the ground through a switch unless you need a full break (isolation) of power. The one you bought does not sound like it will do this.
 

DUI Elite

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The switch you bought. Is it on / off / on?

A typical 3 wire switch will be power in the center prong and power out one prong or the other.
So it could very well be a on, center off, on.

You can buy just a on / off with a pilot light.

You almost never return the ground through a switch unless you need a full break (isolation) of power. The one you bought does not sound like it will do this.
It only has on / off function. 2 options only
 

BestRadarDetectors

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literally looks exactly like this but with Red LED. Same size and all.

I am not a fan of drilling holes in any vehicle. Do you not have another place to install a switch? What are you going to do when you sell the vehicle?
 

voyager7

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It only has on / off function. 2 options only
Did it come with a wiring diagram?

I'm guessing the pilot light is on when the switch is off.
If this is the case then the one pin might be the ground for the pilot light.

Something like this maybe?

 

DUI Elite

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I am not a fan of drilling holes in any vehicle. Do you not have another place to install a switch? What are you going to do when you sell the vehicle?
Im installing it under my removable ashtray. I'm going to modify the back of the ashtray to fit even when the button is in place. When it comes time to sell, new owner will never know the difference.

That picture is just for reference for how my switch looks.
 
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DUI Elite

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Did it come with a wiring diagram?

I'm guessing the pilot light is on when the switch is off.
If this is the case then the one pin might be the ground for the pilot light.

Something like this maybe?

I always thought you want your switch on your ground connection, not your power connection. Is either way any safer?

Edit: i think youre right. Having the switch on ground has the same function as removing the ground connection. Feeding a device power without a ground isnt always safe. Might see the magic white smoke doing this.
 
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protias

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How about doing a light switch box instead?
 

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protias

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voyager7

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If it was me I would use a SPST and skip the pilot light.
Power in and power out, you can't get any simpler than that.
 

DUI Elite

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If it was me I would use a SPST and skip the pilot light.
Power in and power out, you can't get any simpler than that.
Yeah considering what im doing to hide the switch, the pilot light is probably unnecessary.

Thanks buddy, i'll see how it goes/ask questions as i proceed.
 

kpatz

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The best and easiest way is to use a SPST switch with no light (2 terminals). 12V from fuse box to 1 terminal, other terminal out to power your CMs.

If your switch has a pilot light, there will be a ground terminal that will need to be connected for the pilot light to work. Also, there will be a specific terminal to feed power from the fuse box and a specific terminal out to your CMs, in order for the pilot light to work properly.

If you have a SPDT (on-on) switch, it'll have 3 terminals. Connect to the center and one of the two outer terminals.
 

corkguykev

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I would advise you to only drill holes in interior panels that you can remove and replace easily. My front LPP switch, LED and mute button are placed in switch blanks for accessories the car does not have so I can whip them out in seconds with cheap replacements.

My V1 switch is a very small one so the hole would not be noticed where it is.

My rear LPP switch holes are the same but would be more noticeable alright :(.

My STI-R+ and dashcam switches are in another panel that I can replace easily. I was getting better at this as I went along ;).

Unfortunately, placement is also something you have to factor in and its not easy to find something that works well both ways so you will have to decide what to drill and what to leave be. I would not like to make big holes in anything that I cannot remove and replace easily though.
 

pwrpuma

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As mentioned earlier, the Unibit works great, but they are expensive.

As for the switch, all switches are different with respect to the pins, so you have to check the wiring diagram provided with the switch.

In general, you wire the + to your power source, ACC to the load you want to switch, and GND to ground. The illuminating LED is connected between + and GND, so it's on whenever power is supplied to the switch.

If you want to use the illumination as an indicator of the switch state, you can connect the power to the ACC terminal and the load to +. This will turn the LED on when the load is on.


IMPORTANT: Use a LED or 12V light to test your setup. Preferably, get a tester like the kind from Radio Shack so you can monitor the amperage going through. Be careful not to overload the switch -- stick with a 2A fuse for safety.

How much stuff do you want to wire?
 

DUI Elite

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The kill switch will be used in the power circuit for my V1, Redline and Cheetah. Each have their own 2 amp fuse and my add a fuse is rated for 10 amps.

It was originally going to include my wire to charge my iphone but i recently discovered the apple update is keeping it from charging. All other apple devices charge fine, so i might remove the apple cord hardwire
 
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CoralRed335XI

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Im installing it under my removable ashtray. I'm going to modify the back of the ashtray to fit even when the button is in place. When it comes time to sell, new owner will never know the difference.

That picture is just for reference for how my switch looks.
I've already done that in my E92. Will show pics later
 
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