Ok guys i drive an 02 chevy cavalier and i had a weak xplod amp with 2 old RF H 12's or whatever and i sold them and bought a RF BD1500. I'm about to buy a Fi BL 12 and i have a pro working on my box but what should i do electrical wise?? i've been told like a 40 farad cap on the stock system would be good and ive also been told i need a second battery and better wiring. Which do i need? Can someone please help me??

This is in the wrong section, but I'll answer your question anyways.

Cap's are worthless. Don't buy into the propaganda.

You will need 2gauge wiring. I think thats what RF recommends for that amp.

And a decent AGM/Sealed battery in the back.

or a upgraded Alternator, 200amps or so.

oh sorry i didnt know this was the wrong place.

so i could just leave everything stock, get a HO alternator, and a 2 gauge wiring kit and its good to go?

i appreciate the help

Yes.

You could be "safe" without it, but you would have to keep a eye on your voltage.

But I suggest buying a HO alt.

what can happen with the voltage and how do i watch it?

and can i install the alternator myself?

Well if it drops to low, you could fry your amp, or drain or battery down. You watch it by a voltage meter. Stinger makes a nice one. Or you might have a stock thing on your instrument cluster.

And you can install your alt yourself, if you have any know how.

ok thanks.

would a 80A AGU fuse be big enough??

I doubt it.

Id do at least 150amp. Maybe a 200amp.

Moving to Amplifiers / Head Units / Processors

ok what do you guys think about this: keep the stock alternator, put a Kinetik HC 800 in the back, 1/0 wiring all the way including to the amp, a Digital ANL Fuse Holder with One 0-2 Gauge Input & One 0-2 Gauge Output which shows the voltage, a 200 Amp ANL Fuse?? do i need to run power and ground to that rear battery??

This is in the wrong section, but I'll answer your question anyways.

Cap's are worthless. Don't buy into the propaganda.

You will need 2gauge wiring. I think thats what RF recommends for that amp.

And a decent AGM/Sealed battery in the back.

or a upgraded Alternator, 200amps or so.

can i ask why the 2 gauge wire?? would 4 not be enough?? sorry to ask but a friend of mine has a system and it sounds pretty good, hes using some real thin wire. Itold him why was he using so thin wire he said thick thin sound the same to me. I just wanna know if the 2 gauge gives some benefits? thanks

Cause that amp draws ~150 amps, and really thats pushing it for 4 gauge.

You have the have big enough wire, so the amp can draw the current it needs to make power. If you run thin wire, you wont get all the power from the amp, and it may cause it to break.

ok what do you guys think about this: keep the stock alternator, put a Kinetik HC 800 in the back, 1/0 wiring all the way including to the amp, a Digital ANL Fuse Holder with One 0-2 Gauge Input & One 0-2 Gauge Output which shows the voltage, a 200 Amp ANL Fuse?? do i need to run power and ground to that rear battery??

The HC800 is only designed to handle 800rms. You would need a 1400 or bigger IMO. But that could work I assume.

You don't have to run power and ground from the front back battery, but I think its better to. You can ground the rear battery to a good location somewhere in the back.