Is this right? Help with Amp and Enclosure!!

[Durango03 10+ year member]

Ok, I bought the 1/0 big 3 kit from sonic. I am to run the positive from alternator to battery. Neg. from battery to chassis, and from engine to chassis? 2 questions:

How will I know "ok, this is the one from engine to chassis"?

The OEM wire can be chunked, right?

Also bought 0 gauge amp kit. Comes with 150amp fuse. Any good? Should I even waste time with it?

Amp is SSL EV5000 mono, powering 4 skar vvx-12's. Would it be a waste of 0 gauge NOT to run 8ga with the subs? And with that being said, is it always better to go lower, say 4ga?

Plan to run the subs at 0.5ohms. They are D4, so to do so all I have to do is connect +,+ and -,- on all subs, then run 1 of each from each sub.. correct?

Also, I was trying to find someone to build an enclosure for me, but I may do it myself. Truck measures (in inches) 53(w)x48(L)x24(H) which I calculate to be roughly 36cu.ft. A spec ported box for the 4 subs needs 6-8cu.ft. SO:

Building a box 2 1/2 ft(W)x 2ft(L)x 1 1/2ft(H) would make 7.5cu.ft. and be sufficent??

Lastly, I a week ago I couldnt have even told you what the big 3 were. Ive messed with alot of audio but never done anything "Right". After everything Ive read I still dont know how to build a box to spec when it comes to hertz.. any help there??

I know its alot, and I am very thankful I finally decided to take part in this forum. I have learned TONSS just in the few days Ive been around.

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[Durango03 10+ year member]

TTT.. here's hoping for some expert input //content.invisioncic.com/y282845/emoticons/veryhappy.gif.fec4fed33b4a1279cf10bdd45a039dae.gif

 

[goingdef 10+ year member]

well unless your box dimensions are internal your going to lose well over a cubic foot you would be at 6.12, as for the speaker wire 8g would be fine, as far as porting look up a port calculator and follow the recommended specs.

 

[Durango03 10+ year member]

Thanks for the help. I didnt think about that being the internal dimensions. Using 3/4 MDF, I figure a loss of 3'' for the first sub, and 2.25'' for the remaining 3 for a total loss of 9.75''. And that is before calculating the room for MDF to create a port with... suppose Im going back to the drawing board. Thanks for preventing me from making a huge mistake on that one!

Now to master the port calculator //content.invisioncic.com/y282845/emoticons/*******.gif.a649d21efc0d1fd4890a6428166586c1.gif

 

[tc300 10+ year member]

Should also try to build the box around your cars cabin gain.... Know some1 who spent 2100 is subs and amp.. And 250 on a box built to sub specs.... I thought he just hadnt tuned it. So when get out the flukes n tune the system. For what he has he should be atleast twice as loud. Its a daily set not a comp car also.