I bought a bargin bin active crossover from a local audio shop. Ill post the model number when I get home but i dont think there is any information on the internet about it. It must be a few years old. My amp is a 600w sony xplod the subs are dual 12" p1s12 rockford posgates.

The cross over has a 4 wire harness that includes ground, 12v constant, amp blue wire, and headunit blue wire.
I wired the 12v to my amp turn on wire (REM) since its an accessory switched signal. I also ran the amp blue wire to the REM terminal and the headunit blue wire to the REM terminal as well since I have the stock non-shaker system in my 2005 v6.

When I plugged my line out converter into the input of the crossover and the output of the crossover into the amps input I didnt get a signal going to the subs.

When I plug my rear speakers into the high level (speaker) input of my amp and patch the crossovers output into the amps low level input and the amps low level output into the crossovers input (I figure this is like an effects loop its processing the signal) I get the exact same sounding signal from the subs as if I had the same setup just without a crossover plugged in. No effect at all changing the frequency. If I crank the boost on the crossover from -15db past about -7db all the way up to 0db and +15 db the subs vibrate like hell constawntly. like "BRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR".

What could be my problem?

Id like to solve this but in all reality im buying a new head unit soon and then all my issues will be solved. no more of this stock headunit micky mousing deal.

 

Your 12v should run right to a 12v source i.e..fusebox, battery terminal (easiest is probably your amps 12v terminal. Not REM terminal)

The blue wires (REM) (REMote). You should already have one going from your HU to your amp. Decide where the xover is going and cut that wire into 2. Connect 1 end of the xover REM (blue wires) to the HU lead and one to the amp.

HU REM (blue lead)----*wire1*---->(Rem to HU)xover(REM to amp)----*wire2*---->amps REM term(2 wires, thats it)

That should do it.

Basically from what you said you've done you just need to swap the 12v off of the REM to a 12v source. You can also ground it on the amps ground terminal.

Edit: Also are you sure your amp doesn't already have a built in crossover? If so you won't have much difference anyways besides maybe a bit more gain. Which you may not even get that if it's a crappy xover...

 

I dont see how switching the 12v from the rem terminal to a constant 12v will make it work, not to mention possibly drain my battery.

There is no blue wire going from the HU to my amp because its the stock radio. Does the stock 2005 mustang basic radio have this elusive blue wire?

 

Because your "active" (electronic)crossover needs constant 12v to operate just like your amp. Your remote wire just sends a signal to turn on or off. The REM is a low voltage switch, not a power source.

What the hell turns your amp on and off now then if you have no remote wire from the HU? As far as the crossover draining your battery... Your amp should be hooked up that way as well man.. 12v straight to the battery with a fuse between and a REM wire to the HU.

What do you have your amp hooked up to?? Anyways it won't drain your battery. Thats why there is a remote wire. Sounds like you have bigger issues than the crossover... I'd take it to best-buy or whatever installer you got around you and pay em the $50 to do it right. You may have a rolling fire hazard...

 

Hold up, did you connect both the +12v wire and the blue remote wire to a switched accessory in the fuse box? If so, it should power on and off with the vehicle. Assuming everything checks out with the wiring, fusing, etc, the unit could be defective. Lastly, did you double check everything with a meter to ensure that power and ground were indeed going to the unit?

 

Maybe I'm misunderstanding him but I believe he said he hooked up the crossovers 12v to the amps REM terminal rather than a constant 12v source (fuse box,etc..).

 

I saw where he said he was using the stock radio. I wasn't aware of the non-Shaker stock radio having a remote turn on output but I could be wrong. Even if it does, chances are it would have 5 volts of output instead of 12 and would require the use of a relay to energize most 12 volt remote turn on devices.

 

Right, so even if he doesn't have the remote lead on the stereo, the 12v should still be hooked up to an accessory in the fuse box, right? Whether it be alone or piggybacked on the amp. I'd assume his amp must be hooked up that way as well already... So I guess my point is couldn't he just swap the 12v crossover currently on the REM terminal of the amp to the amps power in? Wouldn't that solve the problem?

Thats the part I don't understand is why he's got the 12v of the crossover going into the REM terminal of the amp. I don't understand how his amp is running any different way than this. The remote and power gotta be straight to a fuse box acc switch I'd assume.

Edit: after checking some, it seems the 2006 base stereo the remote is yellow and grey, not standard blue. There's a good chance it's the same as the 2005. But also found there may be more than one this color so he'd still need to test the line with a meter. But either way, I guess tapping an acc for the remote would do the same thing.

 

it sounded to me like he hat the x-overs remote turn on OUTPUT going back into the radios remote turn on OUTPUT. This would be bad....

 

After re-reading your initial post, now I'm really confused. You said

But then you said


So which is it lol?