I apologize if this post gets lengthy but I need some advice/direction on this one.

Truck is a 2005 F150 Screw King Ranch edition with factory 6 disc in dash CD player with no factory subwoofer. I am going to an aftermarket head unit, Sony, Pioneer or Kenwood, don't know which yet but I am trying to figure out the current wiring first.

The previous owner of this truck apparently had a nice system in this truck, I have 4 gauge monster cable coming from the battery (of course its disconnected), I have 4 gauge ground monster cable and then I also have Monster Cable OEM S16 that has wiring for all 4 speakers plus the remote wire for the amp. Here is how the wiring is set up in the front door speakers:

Driver side: Orange/blue & blue & white factory speaker wire are connected to seperate green & black wires that run to Boston Acoustic crossovers. The green & black wires then run to the "input" on the woofer crossover. Then red & black wires run from the "output" the 6x8 woofer. On the tweeter crossover, there is nothing going to the "input" but the red & black are coming from the output to the tweeter. Question: Why is there no input for the tweeter crossover? Is it because the woofer crossover is seperating the signal and just sending it to the tweeter crossover?

Same goes for passenger side front except the factory speaker wire colors are green/orange & white & green plus crossovers on the passenger side as well under the front kick panel.

Now to the Monster cable OEM S16 wire running in the truck.....with the front speakers connected to the crossovers, how do the wires from the MC OEM S16 then get hooked up? Obviously at the back it will get hooked up to the amp but how does it get hooked up front with the head unit and wiring harness and does it affect the current wiring for the crossovers?? In the S16 wiring, there is solid blue which is the remote for the amp, then there is gray/black, green/black, purple/black, white/black.

I apologize if this post sounds totally stupid but I don't know enough about the wiring and I know someone on here will know! Thanks in advance for all the help on this one and sorry for the length of the post.

 

Let's start with this.

 

The crossover networks I've played with had a single input and then two outputs. One out for the tweeter and one out for the woofer. There's some maths involved for impedance and such that changes the component for the network. I'd suspect both speakers being on the same channel will use a single cross over for mids and highs. (This is just my expectation, finding the tech sheet at the manuf's website is the best thing to try.)

I don't understand the issue with the rest of the wiring. The easy and clean way to install a radio is with a plug that plugs into the vehicle plug. That plug will have loose wires you will (preferably solder) connect to the new radio's loose wires. The colors should be pretty standard. Ylw for constant power, red for switched power, black for ground, then grn and grn/, wht and wht/ , gry and gry/ , purple and purple/ for the speaker channels. The speaker channels should have the same colors, one wire all color and the other having a stripe of blk, wht, or something.

The way I would add the crossover is to solder the leads to the new radio harness and not use the adapters wiring. This way it's connected, but not cutting into the stock wiring.

 

Are the crossovers "Bi-Ampable"?

 

if they have 2 sets of inputs to go with the 2 outputs then yes. if there are 6 terminals on them, you are limited to 1 input/2 output.