Great writeup. I'd suggest this makes it into the "sticky" section.

At the very least, we now have a good thread to providfe to those that will ask this question in the furure, and not bother using the search.

 

all depends if you have the truck prewired.
If you have both the sub plug in the rear and the sub plug for the radio up front then yes, its as simple as buying a ten dollar small harness. I have one that came with my radio install kit if your in need of one.

If your truck is NOT prewired you will have to do what im doing, and that is to make a harness using some factory connectors.
Take a look at this thread, it gives you the part numbers for the ford plugs as well as a ton of info on how to wire them up if your not prewired. Im just using the sub connector and wiring it in to my aftermarket unit so i dont need the radio end.

 

I am wired. I took out the 6 disc to put my flip out in and didnt have the plug for the sub. Im going to call tomorrow to see what i can come up with for this plug you speak of lol

 

$18 and here by weds. as soon as i said ford f150 factory sub he said $18. apparently it happens a lot

 

what was 18.00??? the sub plug itself was 36.00 from my dealer.

 

hes talking about the aftermarket sub plug. the one that has the rca's and plugs into the factory plug to the rear of the stereo and to an aftermarket RCA and remote.

Be sure to research the resistor cause the factory sub has a 5v turn on lead (remote) and your aftermarket radio will have a 12v remote. You have to step that remote down to a 5v so that your sub doesnt pop when your stereo turns on.

Like i told you ushkie, i have it, i have a kenwood 8120 that it came with and i am not prewired for so i cant use it and have no need for it. I have to run my own wiring so the plug you need is useless to me. You coulda had it for like 4 bucks in shipping but oh well.
Let us know how your install works out.

 

Thanks for the offer Fabian but im impatient lol.

 

ended up with the plug for free and a buddy is goin to hook it up for me with a resistor he has. so busy with work i havent had a chance.

 

so if its wired for that, is there an adpater to convert that plug into rca's for an aftermarket amp?

 

I think I'm hoping to do the same thing with my truck. I wanna keep the factory head unit with navigation, but take out the factory sub and possibly use some of the wiring that is currently ran to hook up an aftermarket amp with 2 subs under the rear seat.

I realize an aftermarket amp would need to be connected to it's own ground and directly to the battery, but would the sub signal wires and remote wire currently connected to the factory amp and sub be enough to get an aftermarket amp the signal it needs and tell it when to turn on and off. If so, would the sub signal wires be considered speaker/ high level inputs or would they be a cleaner like preamp inputs.

I can't seem to find an answer to this anywhere on the site.