Contour Enthusiasts Group Archives Forums Modifications Audio Installed my amp and sub...

First time I'd ever done any of this stuff. I'm pretty sure the sub is sealed well and everything is wired correctly (preout, RCAs, power, ground, fuse, etc.) but we'll find out soon enough.

The amp was not powered; so I checked up front and the fuse was busted. The head unit was powered and playing the front speakers at least.

So I'm going to pick up a new fuse...wish me luck.

Make sure you didn't wire the amp backwards. If you blew a fuse before you een started it up, that could be why. Check and be sure that the ground is going to the GRD terminal on the amp, and the power supply from the battery is connected to the Batt terminal.

Not giving you a hard time, I know a few people that, not wantinf to wait another minute to hear thier stuff, instaled it as fast as they could and poof... bye bye fuse

I didn't blow the fuse or pop it, it was just broken, maybe from shipping. I drove to the store, popped in a new fuse, and (thankfully) everything powered right up.

However...the sub is SO quiet. I turned off the low pass and could hear it playing music...so I know it is getting a signal...but there is no way it is getting enough juice (at least that's what I think).

I am only using 2 of my 4 channels on the amp. I'm running it in 4 ohms bridge mode. (USX4065) Also right now I have a 80A fuse in there.... but my book says to use "20A X 2". So I need two inline fuses???

Thanks for your help Honkey.

That's for the amp's onboard fuses. I had a USL 4085, it used 2x30A. If that's your only amp, you should use a 40A fuse after the battery. Really it's just a failsafe for idiots that wired it all half assed so they don't start a fire, you should be safe

Is your sub a DVC sub? if so, there may be a way for you to use all four channels of the amp on the sub at once. You may also have to adjust the gains on the amp to match the HU's level of output. I know that if I minimize all the setting on my T757, the HU will play too loud in comparison (so I bought a speaker amp )

The other thing to look at is your ground, make sure the ground wire is as short as you can afford it to be, and sand the contact area really good so there is a good contact being made.

That 4065 puts out more power than my PG QX2180 did, and I was using it with no problems so in a worst case scenario, it may be a problem with the amp itself.

I believe those 20A X 2 are the two fuses on the actual amp...

on my subs i had one hooked up right and one backwards it it blew an 80 amp fuse (off the battery terminal).. rewired that sub and ive never had a problem again

I just got my stuff in yesterday and i had a simmilar problem, i had wired my amp turn on to the blue wire that goes to the ford wiring harness and not to my head unit. So after being dissapointed i went back and checked to see if the amp had power and it did, so i then knew it was the amp turn on. I pulled the h\u out and rewired it to the h\u's amp turn on which was orange (i thought it was always blue?) and now they work. I have pics but i have never posted pics so i dont know how. could some one help me out on how i could post a pic?? Thanks Tim