12v switched power for amplifier on

wykdtr0n · Apr 28, 2016

I'm at the stage in my audio install where I will probably be turning things on tonight. I'm wondering what the easiest source is for switched power for my 12v amp on in a 2015 RAM?

I know the cigarette lighter is switched, but I'm hoping there's something easier to get to. I've dug around but have only found suggestions for older Rams. Thanks!

PCT · Apr 28, 2016

Im guessing your using the stock radio? Have you tried finding out what the switch is for that and tap into it?

wykdtr0n · Apr 28, 2016

I am running the stock radio, despite my utter lack of love for it

I haven't had much luck finding wiring charts for the 2015, and I haven't had to rip open the dash yet-I tapped the rear speakers at the door pillars for my signal. I'm also a noob when it comes to a multimeter, but I imagine it can't be much harder than fiberglassing the sub box.

baum · Apr 28, 2016

there isnt a switched lead at the radio its canbus controlled meaing its digital turn on from the computer.

cig lighter is the easiest and best choice. i personally like to use it only to trigger a relay so it doesnt put any current draw or back feed into the stock circuit.

troutspinner · Apr 28, 2016

You can grab that switched circuit from a plug under your drivers seat. I forget what color it is but there are only a couple of wires in that plug. Take a meter to it and you will easily find out.

baum · Apr 28, 2016

troutspinner said:
You can grab that switched circuit from a plug under your drivers seat. I forget what color it is but there are only a couple of wires in that plug. Take a meter to it and you will easily find out.

that is even worse than tapping into the cig lighter.

vehicles are so sensitive now days that the slightest current draws on existing circuits can fry computers or trip CEL

sbarron · Apr 28, 2016

Yeah, but power on signal current shouldn't be very much, similar to turning on a relay, no? All power used to function the unit should come from the main power supply?

Sent from my iPhone using Tapatalk

troutspinner · Apr 28, 2016

baum said:
that is even worse than tapping into the cig lighter.

vehicles are so sensitive now days that the slightest current draws on existing circuits can fry computers or trip CEL

It is the cig lighter wire.

troutspinner · Apr 28, 2016

sbarron said:
Yeah, but power on signal current shouldn't be very much, similar to turning on a relay, no? All power used to function the unit should come from the main power supply?

Sent from my iPhone using Tapatalk

Right, you are triggering a relay in the amp. Putting a relay in place to trigger another relay is redundant.

wykdtr0n · Apr 28, 2016

troutspinner said:
You can grab that switched circuit from a plug under your drivers seat. I forget what color it is but there are only a couple of wires in that plug. Take a meter to it and you will easily find out.

Thanks man...I will try to locate that tonight.

baum · Apr 29, 2016

sbarron said:
Yeah, but power on signal current shouldn't be very much, similar to turning on a relay, no? All power used to function the unit should come from the main power supply?

Sent from my iPhone using Tapatalk

even on aftermarket radios the remote turn wire is really only meant for 1 amp once you start to add multiple amps its recommended to do it on that situation also.

a relay only takes milliamps to trigger a remote turn on uses more.

sbarron · Apr 29, 2016

baum said:
even on aftermarket radios the remote turn wire is really only meant for 1 amp once you start to add multiple amps its recommended to do it on that situation also.

a relay only takes milliamps to trigger a remote turn on uses more.

Ah, thanks. I thought it would be milliamps for the remote on as well.

12v switched power for amplifier on

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