My subwoofers in my car are not working properly, I have a Kenwood Hu, 1000 watt 2 channel earthquake amplifier brand new, 2 Sony Xplod 10 inch subwoofers and a pioneer 12 inch subwoofer. the problem is that when I plug my RCA's into my radio or the amplifier I get a thumping sound like a heartbeat, this also goes for the remote wire, green power light on my amplifier dims in and out, and the subwoofers are Barely putting out any bass, it's happened before I bought the new amplifier, I have change the head units, and still come up with the same problem what could it be

I just got done with 10 others like this with the same problem, just look at some of my other solutions to see what you will be doing. Basically you need to upgrade your entire charging system to run these amps, You guys are not even considering the power draw that it takes to keep these things running at full power! You need to plan out your system way before you start to buy things to make sure that you will only have to install it once and do it correctly. It all starts with the power available from your alternator. You will have about 40 to 60 amps of left over current to use from a stock alt after it has to charge the battery and power the car while driving. That means you can have a head unit drawing 15 amps and a sub amp that will draw 35 to 40 amps before you will need to upgrade your entire charging system. Failure to do this will result in Batteries lasting 1 year a new alt every summer, your amps will burn up the insides a few times before you realize the importance of this all.