Hi, my local audio store told me this would work with what i am doing. Im installing an amp for my subs using my factory headunit. It is a 2010 f150 with sony and sync. Can anyone give me any advice or input on installing this? Thanks
http://www.pac-audio.com/productDeta...&CategoryID=28

 

Does the amp have speaker level inputs? If so just use them instead. Speaker level inputs are the same as an LOC built into the amp.

 

Maybe a dumb question, but there isnt any way i could tap into the harness thats from my factory sub/amp combo is there? Trying to make this easy as possible haha

 

You can tap into one of your back speakers and feed that to the new sub amp.

 

So what wires would i tap into for the rca's?

 

You don't. You tap into the speaker wires and run them to the speaker level inputs on your new amp.

 

Wouldn't he want to tap into both back speakers, just in case the music has different L/R characteristics for the low freq?

 

Sub frequencies are essentially mono so you only need to tap into one.

 

ok so if im getting this, just run speaker wire from one of my rear speakers to my speaker level imputs in my amp.. no remote or rcas necessary??

 

It won't work...... or at least it hasn't worked in my past experiences with my truck (2010 with Sony, Sync, and NAV). I've tried using a simple LOC tapped into the speaker wires and it didn't work because there is very little bass being sent to the door speakers; it's all sent to the sub. You can't tap into the sub wires with a LOC because the signal being sent to the sub amp is a low level signal (about 0.5v if I remember correctly) and LOCs require a high level signal. Theoretically you could splice a set of RCAs on to the factory sub signal wires and it should work. However it didn't work for me and I think it was because the signal was too low for my amp. What I'm attempting now is installing a differential line-driver (Rockford Fosgate RF-BLD) and I'm hoping it will get rid of any noise in the system and bump the signal up to 5v.

In case you don't know you have a DSP module that separates the signals being sent from the ACM (your headunit) and it sends high level signals to the front/rear speakers and low level signals to the OEM sub amp. It's really a pretty complicated system and it's a pain to integrate any kind of quality aftermarket system with it.

If you're interested I have a wiring schematic for the audio system. I could send it to you and you'll know what I'm talking about.

 

PM Sent. Thanks

 

You will still need a remote signal to turn on amp but the rest is correct. If you have the factory sub you can take the signal from the sub wires, not the sub amp input though because it is too low.

 

http://www.reqsound.com/

Thats what I have and it works great... let me know if you have any questions.

 

Hey man. Check out audiocontrol products. they work great

 

I found a different way to hook everything up. Thanks Guys