New Truck

does it have a cummins?

 

it's just $20. use it for a while and resell it for 30

 

hell yeah for 20 bucks its worth it...if not than you only lost 20 bucks.

it should power one the speakers fine for now....they are pretty efficient

 

hell for that cheap 8 gauge will do fine

 

4 cubes tuned to 30-35 Hz will do perfectly.

I had one ehqs 12 in a 1 cu ft box tuned to 30Hz..yeah it was a box I built with scrap wood for a couple 6.5 inch subs...just glued on another baffle and cut a 11 inch hole for the sub...it actually sounded decent off 300 watts. But that was severely choking the sub

 

Im not sure if fixing a head units speaker outputs are worth it...unless its brand new than it is under warranty...are the outputs full range??

Do you have an extra small amp laying around to power the speakers??

 

well...you can get a new pretty nice HU off ebay for pretty cheap

I'ma get a Pioneer 590 off ebay for like half of what it costs at a local store

 

use two 4 inch round ports each about 12 inches long

that would give you tuning around 33-34Hz which should be good

 

i just ran the box through bassbox pro and the numbers i come up with is different than anzboi. here they are: to tune at 30hz 2-4" ports 48" long, 35hz 2-4" @ 34" long, and 38hz 2-4" 28" long. 30hz 1-4" port 22.5" long, 35hz 1-4" port 15.5" long and 38hz 1-4" port 12.5" long. All with a box net of 4.0 cf. Can someone check me to see if i made a mistake?

 

yup those are wrong...I'm not sure why your numbers are off

with a 4 cu ft box and two 4 inch round ports 48 inches long tuning would be 18Hz