I always just used a battery charger, can get ones cheap with a 12 amp max 12volt line.

( crappy tire)

Terminology help:
"12v +" is the same as "Positive"
"12v -" is the same as "Negative" "Ground" and / or "GND" (which also means ground)
"REM" "REMOTE" and "12v + Switched" are all the same. This line needs to see 12V in order to turn the amp on. This is a handy feature so you don't have to push a button on your amp to turn it on. Rather, when this line is connected to the "REM" or "AMP" line of your car stereo, it will only turn on with you head unit.

How to connect things in your situation.
12V + to +
12v - to GND
Jumper line from 12V + to REM


Disclaimer: I am not responsible for you mis-understanding this post and any damages that may result from your misunderstanding. If you are unhappy with this disclaimer – put your equipment back in the box and return it to the store.

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