I'm crying right now, I need help!

[soundstream5ch]

Hi, I got myself a lc7i unit and I'm having a bit of a problem making it work. Let me describe the way I set up. I have a 2010 f150 with the basic stereo system (4 speakers).

I bought a metra harness cause didn't want to cut factory harness. I also bought a speed wire (9 wires) to make it easier to connect the lc7i.

So I cut the metra harness speaker wires (8 wires) and connected the speed wire which is pretty straight forward. Next, without cutting the red +12 volts wire (just removing some insulation) from the metra harness, I connected the remaining wire from the speedwire to it leaving me with one black ground wire and one yellow 12 volt constant.

Then I brought all these wires to the lc7i proceeding to connecting them in the speakers input, and in the +12 volt input. Then I grounded the lc7i to a verified ground.

Inside the lc7i the auto mode is on since I only have 2 speakers and I tried the GTO feature to ON and to Defeat mode and nothing is working!

Is there anything I did wrong with my connections?

Is there any other way I can try the lc7i to make sure it is working?

I really need your help, thank you very much for your help.

P.S. If you go to my profile, you will see a picture on how I wire all this.

Click to read more...

 

[inferno1985 10+ year member]

12 volt constant is not in use? have you tried splicng the 12 volt constant along with the 12 volt positive?

not sure on that harness

 

[southport2014 10+ year member]

Hi, I got myself a lc7i unit and I'm having a bit of a problem making it work. Let me describe the way I set up. I have a 2010 f150 with the basic stereo system (4 speakers).
I bought a metra harness cause didn't want to cut factory harness. I also bought a speed wire (9 wires) to make it easier to connect the lc7i.

So I cut the metra harness speaker wires (8 wires) and connected the speed wire which is pretty straight forward. Next, without cutting the red +12 volts wire (just removing some insulation) from the metra harness, I connected the remaining wire from the speedwire to it leaving me with one black ground wire and one yellow 12 volt constant.

Then I brought all these wires to the lc7i proceeding to connecting them in the speakers input, and in the +12 volt input. Then I grounded the lc7i to a verified ground.

Inside the lc7i the auto mode is on since I only have 2 speakers and I tried the GTO feature to ON and to Defeat mode and nothing is working!

Is there anything I did wrong with my connections?

Is there any other way I can try the lc7i to make sure it is working?

I really need your help, thank you very much for your help.

P.S. If you go to my profile, you will see a picture on how I wire all this.

Let me know if you figure it out man Im in the same boat as you

 

[soundstream5ch]

12 volt constant is not in use? have you tried splicng the 12 volt constant along with the 12 volt positive?
not sure on that harness

Do you mean connecting the 12 volt constant with the +12volts ignition together.

Doesn't that mean that if I use the 12 volts constant there will be always power to my lc7i which will lead to the drainage of my battery?

 

[soundstream5ch]

Let me know if you figure it out man Im in the same boat as you

I will let you know for sure if I find the solution, I hope you will do the same, but I'm confident someone here knows the solution

 

[southport2014 10+ year member]

I will let you know for sure if I find the solution, I hope you will do the same, but I'm confident someone here knows the solution

Thanks man, and I haven't bought a line out yet, im thinking between the lc6i, lc7i, or LCQ-1

 

[inferno1985 10+ year member]

Do you mean connecting the 12 volt constant with the +12volts ignition together.
Doesn't that mean that if I use the 12 volts constant there will be always power to my lc7i which will lead to the drainage of my battery?

yes

well. my radio needs the 12 volt constant and the 12 volt positive to work. and my battery never dies.

my volt meter is hooked up to it as well. my voltage meter turns off when i turn my radio off.

 

[soundstream5ch]

Excuse my ignorance but could you explain what is the difference between the red +12volt and the yellow 12 volt constant? And this is not sarcasm, it is the first time ever I try to do this.

Thanks

 

[inferno1985 10+ year member]

Constant 12V+ (Battery) retaining clock time when car is off, alarms remote starts etc, usually very low milliamp consumption

Switched 12V+ (Accessory) powers when the key hit acc position or the ignition is turned on.

 

[soundstream5ch]

Thanks, now it is clearer and this is why I'm wondering why my lc7i didn't turn on when I put my key in and turned it to accessory and even try while the truck was running but yet nothing.

 

[soundstream5ch]

This is how I hook everything up.

lc7i wiring diagram - CarAudio.com Audio Gallery

 

[inferno1985 10+ year member]

well if it doesnt power on at all. could also be a bad ground. id re check the grounds and if dont work id try the constant as well.

/e

This is how I hook everything up.
lc7i wiring diagram - CarAudio.com Audio Gallery

cont really see the diagram well pics too small

 

[soundstream5ch]

Do you know if there's a way how I could try it so I could make sure it's not a faulty lc7i? Ok, I'm just saying something that might make me look stupid but whatever... can you use a battery charger just to see if the light will come on? Positive in +12volt input and ground it somewhere?

 

[inferno1985 10+ year member]

probably not. id try the 12 volt constant, its typically the same thing as a 12 volt power wire.

 

[keep_hope_alive Premium Member]

ground the LC7i to chassis.

use the ignition (switched) +12V red wire for power.

do not use the constant (battery) yellow wire.

do not connect yellow and red together.