amp power wiring

dustin g

New member
I am putting a small amp and sub in my 98 GC Laredo and I am not sure where to run the power to. I have ran them directly to the battery on past rides but I want to do it right in my Jeep. I am putting it in the cargo area mounted on the speaker box so I can easily remove it if I need the space. Just out of curiosity can I splice it into the power for the infinity amp under the seat? Not sure if it will be too low of power or not.
Thanks for any help.
 

The right way is hooking straight to the battery, That way your amp will get the right power. The power going to the infinity amp is only enough power for that amp, nothing else.
 
Most amplifiers have 2 power leads. One is the main power and the other is the remote switch power that turns on the main. I would suggest that you run the main from the battery as previously suggested and splice in the remote power lead to the ignition run circuit. I don't think the factory infinity amp. has enough wire there to support both components.
 
Since you are running a dedicated line straight from the battery, might as well mount up a cap for that line from the get-go.
 

Run it straight to the battery, but be sure to use a fuse on it (one made for amps), and don't just use speaker wire for the power. I'd suggest getting an amplifier install kit - they can be had for less than $20
Amplifier Installation Kit | Car Audio Fanatic

I used a capacitor in the past, but haven't had a good experience with them. It provided a constant power draw (I bought a cheap $100 one off ebay) and would kill my battery if not driven for 2 weeks or so. I'd say get a big optima battery before going with a cap.

I normally run the rca wires down one side of the jeep, and the power down the other side - running the power bundled with the inputs can cause a hum. Also, do a good job of grounding it. I usually loosen a bolt, sand off the paint, and re-tighten.
 
Never heard of a cap draining the battery. If there is no current draw, the cap is seen as an open. But, the Optima yellow top would be a good bet if you went that route...there is always more than one route.

If hum turns out to be a problem due to the oversized and/or parallelled wires, a simple choke can be put close to the receiver, and make sure all crossings are at 90 degrees.
 
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