i know there are 50 million threads like this, but i feel like i need personal input. im getting no bass...at first before i got the right wiring harness, i just got the the front tweeters working. now that i got the premium sound wiring harness, things sound better, but im still not getting any bass. here is a pic of my rca output/input whatever...lol, that came with the head unit. one set is for front speakers, one set for rear speakers, one set for subwoofer or non-fading.....now which one should i plug in? ive tried all three but still no bass...help please....

 

If you have an aftermarket amp that uses rca inputs for a sub your nonfader is what you use.

 

im using my mach 460 amps. only thing i changed was the head unit

 

nevermind, blue wires werent connected...duh