Re: What do I need? (Big 3?, X-Battery?, HO Alt?, All 3?)
id hook everything up and see if your getting any voltage drops or light dims. id recommend doing the big-3 out of all that you mentioned first. then a replacement deep cycle/starter battery
1. im about to run the bxi1606d myself...i plan to rewire my car with 2 gauge because of this amp (had 4 gauge before). but im sure 4ga will do.
2. like other said, ditch the cap. big-3 is highly recommended. use whatever gauge wire you used for your power wire for this DIY. some amplifer manufactuers recommend a portion of the big-3 (negative battery post to car chassis frame).
3. depends. im not too sure if this is correct, but from what i only heard is having additional batteries only give your alternator more current to pull/produce. thus putting more strain on it.
4. that depends. i dont know too much about HO alts.
go with an anl style fuse holder. figure out what gauge wire you decided to go with then consider what ampre fuse you will run. most cases, 4 gauge = 150A max. the bxi1606d alone is fused at 180A. id definately consider running at least 2 ga and run an 225A fuse.
*EDIT: ah crap, this thread is old. i need sleep *
refs: jalverson, hccafan, seth305, kevokrook77, bjfish11, jmanjr, allenzo, spy, erthshker, morgans432, Fuknmovin, evilsaint, Goindef154