Lightup switch on remote wire

i have like 3 different "light up" switches i have done through, there is a 12v, ground, and load.

or supply, load, ground.

supply = 12v

load = wire from remote on, on amp.

groud = ground

with all my switches i have gotten the light when its switched on, and no light when it's switched off, sounds like you are wired wrong...

impedance doesn't have a factor in this, the amp either turns on or off with a 12v load on the remote terminal. as long as the switch is grounded properly, the light should come on, when it is in the "on" position.

it's a wiring problem, not a amp problem.

 
i have like 3 different "light up" switches i have done through, there is a 12v, ground, and load.or supply, load, ground.

supply = 12v

load = wire from remote on, on amp.

groud = ground

with all my switches i have gotten the light when its switched on, and no light when it's switched off, sounds like you are wired wrong...

impedance doesn't have a factor in this, the amp either turns on or off with a 12v load on the remote terminal. as long as the switch is grounded properly, the light should come on, when it is in the "on" position.

it's a wiring problem, not a amp problem.
I believe he understands this but he wants to wire the switch to only receive power when the car turns on. If I am reading this correctly, it sounds like the ACC from your HU does not have enough power to light up the LED in the light. Perhaps add a relay for the ACC and the switch will light up?

Correct me if I misunderstood what the OP is trying to do.

 
I believe he understands this but he wants to wire the switch to only receive power when the car turns on. If I am reading this correctly, it sounds like the ACC from your HU does not have enough power to light up the LED in the light. Perhaps add a relay for the ACC and the switch will light up?
Correct me if I misunderstood what the OP is trying to do.
If that is the case, he can wire the 12v on the switch to the ignition wire on the HU, it only provides 12v when ignition is on...

the thing is, with a remote on lead from a HU, it should be 12v, amps require a 12v load to know to "turn on" any less, they are off.

the ignition one will work perfect, that is how i did mine, it only works when HU is on...

there are two power supplys for HU's

one is memory, constant 12+ load

one is the ignition 12v source, that gives it power when you turn the key.

 
If you're going to wire a relay up for amp turn on you wire the Remote wire from the headunit through the coil of the relay.

The load wire can me constant 12 drawn off your main power wires for the amp that then goes to the remote parts for the amps.

If you wire to accessory voltage you could have your amps on with your headunit off... what's the harm? What's the benefit? I'd rather turn my amps on with the head unit, not the key.

 
If that is the case, he can wire the 12v on the switch to the ignition wire on the HU, it only provides 12v when ignition is on...the thing is, with a remote on lead from a HU, it should be 12v, amps require a 12v load to know to "turn on" any less, they are off.

the ignition one will work perfect, that is how i did mine, it only works when HU is on...

there are two power supplys for HU's

one is memory, constant 12+ load

one is the ignition 12v source, that gives it power when you turn the key.
He did that, but the light won't come on. That's his problem. We are trying to figure out why the light in the switch won't come on when the power is wired to the ACC of the HU, but will when he wires it directly to the 12V+.

 
If you're going to wire a relay up for amp turn on you wire the Remote wire from the headunit through the coil of the relay.
The load wire can me constant 12 drawn off your main power wires for the amp that then goes to the remote parts for the amps.

If you wire to accessory voltage you could have your amps on with your headunit off... what's the harm? What's the benefit? I'd rather turn my amps on with the head unit, not the key.
I do not follow you. If he is trying to run multiple switches off of only the signal voltage from the HU, the HU may not be providing enough power to light the switches, but enough to turn the amps on. If he wired the remote to the relay, the relay would come on when the car is turned on, and then would provide adequate power to light the switches as well as turn the amps on.

 
well surprise surprise...i guess whewn i changed HU's i wired the switch through the ACC on my HU, that makes sense now that i think about it...

So it has to be something with the HU. what kind of "light" in in the switch...mine is a led, and led's require averyvery low voltage.......

 
I do not follow you. If he is trying to run multiple switches off of only the signal voltage from the HU, the HU may not be providing enough power to light the switches, but enough to turn the amps on. If he wired the remote to the relay, the relay would come on when the car is turned on, and then would provide adequate power to light the switches as well as turn the amps on.
I think he was referring to my post about probably using a relay in my rebuild...

as I understand, the OP is only using one amp through this ACC.

 
3, I'm not using the remote one
I just read through everything three times and am more confused now then I was the first time I read everything. If he is not using the last prong on the switch that's why he is having problems.

First, Rashadd, do you have the POS on the switch wired to the ACC from your HU? Then, do you have the Ground on the switch wired to the battery ground? Do you have the third prong wired to the remote input of your amp?

If you have it wired like that, then it should work fine. If not, then you may need a relay if you are running multiple switches or amps off just the HU's ACC power.

 
I dont think you guys are getting it...I know how a switch works...

I don't think you do. If you're using a lighted switch you have input voltage, AKA your remote wire.... You have a ground, this is only to ground the light.... and you have a switched output wire, this goes to what you want to turn on and off.... aka.... your amp (s)

Look. If you've got a lighted switch with three pins and you've only got 2 wired and one empty, which is what I'm pretty sure you said earlier....

YOU'RE DOING IT WRONG.

If you have that done right and you honestly don't think your HU is putting out enough amperage to run what is likely an LED and the turn on relay in an amp, then your HU blows. You'll need to wire up a relay to get a stronger signal to send to the back of your car.

Seriously, none of this shit is that hard. You have nearly 2000 posts... time to start reading.

 
Activity
No one is currently typing a reply...
Old Thread: Please note, there have been no replies in this thread for over 3 years!
Content in this thread may no longer be relevant.
Perhaps it would be better to start a new thread instead.

About this thread

Rashaddd

5,000+ posts
Terrrrrist
Thread starter
Rashaddd
Joined
Location
Sacramento
Start date
Participants
Who Replied
Replies
50
Views
2,392
Last reply date
Last reply from
UndercoverPunk
IMG_20260513_214311575.jpg

ThxOne

    May 13, 2026
  • 0
  • 0
IMG_20260513_213956814.jpg

ThxOne

    May 13, 2026
  • 0
  • 0

New threads

Top