Originally Posted by SSEimatt93
On the topic...
I am running 4Ga wire from the battery to the amp.
Say I want to get a GOOD 12" sub, a small truck sized box (not to hinder all the space in my trunk)..how Does a person go about hooking up another amplifier to a 12" sub, when I already have an amp wired in?
Should I run a cap?
you go about it something like this:
step 1: fused distribution block
step 2: I am going to guess you will need to upgrade your fuse that is under the hood also. (to a larger one)
step 3: make another ground wire. (doesn't have to be to the same point)
step 4: split the remote turn on wire off the other amp. (splicing in is fine, no power is drawn from that wire.)
Then ofcourse you need to run the obvious wires (RCA'* and speaker wire)
caps are crap IMO. they are a very poor band aid / attempt of a bandaid for a weak electrical system. If you get dimming you need to complete the "Big 3" (a search will yield you all the info you need to know about that), and possibily a better battery/alt combo. If that still doesn't really fix your problem then you will likely need to upgrade the 4ga going from the front to the back of the car to something larger to handle the load. This assumes that you have very clean and solid ground connections, which alone can cause issues.