Bet this is easier

It shouldn't get power when the ignition is off, only when it's turned on. Check your fuses if you have no voltage when the ignition is on

I think you have something else going on there. I'm not an expert so I'm not really sure what it would be.

It shouldn't drain very much at all. The 12V constant wire is really only to keep enough power going to the head unit so it saves your settings. Your stock head unit uses it as well. Sorry for the delayed response

Yellow wire is always constant

You can buy a simple circuit tester for pretty cheap to find it, as it's not always a yellow wire like the previous comment says. Check out my other video for how to use the tester. You will be using it the same way but test the wires with the key in the off position. When the tester lights up, you've found it.

That's directly to the battery, but you can always put an inline fuse as well.

my radio when i turn it up with subs wired in it will turn off, i have my red power wire ran from the radio to my ignition fuse in my truck, i’m thinking the subs are pulling to many amps through the 15 amp fuse? if so would i run the power wire to the batter like you did with your yellow?

@@univrsl5626 your amp for the subs should be pulling directly from the battery. Power wire from amp should be hooked up to the battery, ground to the chassis. I would assume it's not getting enough juice through the fuse and shutting off to protect the circuit.

@@davidphipps5382 so what would be your solution ive been looking to fix this for so long i would love any help

Rewire your power wire so it connects straight to the positive post on your battery. You will also want to make sure you have a fuse somewhat close to the battery so you don't have a live wire if you ever need to disconnect the power from the amp. I don't have a video of that yet, but I should probably do one to show how mine is wired. The only wire you can hook to the ignition fuse from your amp is the acc wire. That wire only pulls enough juice to turn the amp on when the car turns on. Personally though, I would probably wire it to the radio fuse instead so it turns on with the radio instead of as soon as you turn on the car. Hope that helps fix your stereo issues, life sucks driving with no tunes. Sorry for the late response.

Did you check your fuses? Specifically the radio fuse in the fuse box.

Any time

Did you check the car's main fuse box? There should be a fuse labeled "Radio", check and make sure that fuse isn't blown. If it is then you won't have power to your radio at all.