Help! Amp Turns Off Every Time Car Auto-Stop/Starts

a-a-r-o-n

CarAudio.com Newbie
Hello! I just installed a Infinity Primus 6004a Amp on my 2018 GMC Terrain, which was a hell of an install process, and am running into an issue I don't know how to solve. I don't do a ton of DIY audio projects, so I was hoping someone with more experience on here might have an opinion on how to solve this.

Like most newer cars, my car has an auto stop-start feature. So, if you are in traffic or at a red light, the engine will stop when the car isn't moving. It will then restart itself when you take your foot off the brake. In my car, this is a feature that cannot be turned off. The problem I am having is that every time the car auto restarts, the amp turns off for 3 seconds. I tested everything with a volt meter, and identified that the root cause is that the car battery voltage drops to 10.8v for 1 second every time the car restart happens (when the engine is cranking up). I ruled out it being the remote line by using a separate battery to power it, so it sensitivity to the line powering the amp itself, which is also has the same voltage reading I get when the car is starting directly at the battery. This is a 2018 GMC Terrain with low miles, and I don't really have anything else indicating an issue with the battery. I get over 12v resting with the car off and over 14v with it on.

So, my question is, is it normal for an amp to turn off if the car voltage drops to 10.8v for a second? Is there a way to solve this problem? As you can imagine, having the audio cut out for 3 seconds every time the car goes through an auto-stop/restart function is really really really annoying. This is also not a behavior of the factory radio.

Please help!
 

spokey9

5 time International Booty Bandit Gold Meldalist
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It might be "ghetto" by today's standards but I used to run a wire off the battery to a switch then to the amp...back in my youth the Police liked pulling over anybody loud and the kill switch made it easier to hide who it was 🤣🤣🤣
 
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a-a-r-o-n

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