I need some help y'allllllll

**Koniig** · 01-03-2012

Hello there,

I have a question for you. I have my subwoofer wired up to my factory nav head unit and everything works, (amp turns on, sub hits, etc.) However, there is one issue that is hindering the entire operation. For some reason, after about 40 seconds (after timing it about 6 times) the amp and the sub and everything shutoff; like some sort of automatic power-down. It's really frustrating and I have no idea why this would be the case, everything is wired up correctly and everything turns on when it should, but no matter what, it shuts off after about 40 seconds.

Thank you.

**Explicit_Spade** · 01-03-2012

Does it continuously do it?

What are the makes and model numbers for your amp and sub?

**KeithGTP03** · 01-04-2012

There are a few things to check here. First, when the subs turn off, check your voltage at the turn-on lead at your amp. If you're not at 12v+ then thats your problem. (You may have your remote line connected to a line that loses voltage after a certain period of time) If the voltage is 12v+ at the turn-on and power line, then check the impedance of your subs to make sure your impedance/ohms are correct. If your voice coil has shorted, the impedance will drop to 0 and a lot of amps these days have built in protection that will stop the amp when it sees 0 resistance.

**Brian99SE** · 01-04-2012

Sounds like you have the AMP Remote line wired to the head units Power Antenna trigger wire...

**Bologna** · 01-04-2012

As everyone else said, check the remote turn on lead. Also does the amp go into protect mode?

**Koniig** · 01-04-2012

Well I figured that maybe I had it wired up to a lead that loses power after 40 seconds at first, but then I tested it with a few others and the same thing happened continuously. So just to confirm that was the problem, I wired the turn on lead to a switch and had the switch wired to direct power (this is how the setup sits now.) After turning on the car and turning on the switch, the amp and sub turn on, but once again they turn off after a certain allotted amount of time, even when receiving direct signal to turn on.

**accuab** · 01-04-2012

Then that narrows it down to the amp area. Check your work back there. Something is wrong.

**Koniig** · 01-05-2012

Anything specifically you think I should be checking for?

**Brian99SE** · 01-05-2012

Is the amp going into protect mode or just shutting off completely

**tc300** · 01-05-2012

Duh... Your running a subwoofer off a factory head unit!!

Prolly clipping the holy h e l l out of it too! break out the xtra cash n buy a some wiring and buy a separate amplifier for the sub...

**tc300** · 01-05-2012

This is also car stereo 101.... The beginner section! :-)>

**accuab** · 01-06-2012

Originally Posted by tc300

Duh... Your running a subwoofer off a factory head unit!!

Prolly clipping the holy h e l l out of it too! break out the xtra cash n buy a some wiring and buy a separate amplifier for the sub...

He says he has an amp.

To the op, when the amp cuts out check your voltages at the remote and power wire and see if the protect light is on. It's just weird as hell that it's at the same time interval. It's almost like the power supply section can't handle the juice.

**Bologna** · 01-06-2012

Originally Posted by Bologna

Also does the amp go into protect mode?

^^ This

**tc300** · 01-06-2012

Originally Posted by accuab

He says he has an amp.

To the op, when the amp cuts out check your voltages at the remote and power wire and see if the protect light is on. It's just weird as hell that it's at the same time interval. It's almost like the power supply section can't handle the juice.

Pretty sure its a factory amp! There not to be ran with a sub...Unless it come with one already

Thread: I need some help y'allllllll

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