I'll be blunt, this is going to be a long-drawn post simply because I've never done this before.

When my truck was originally purchased, the original owner opted to buy the "upgraded" sound system which includes a sub-woofer and a small amp to power said sub under the center console. I've since installed an aftermarket player and I'm trying to figure out how to use the amp and sub-woofer already in place.

My problem is that I'm unable to figure out what wire powers the amp and which ones drive the sub.

Aftermarket dual-DIN player.


This is most likely the connector I need.


This is the factory amplifier. The four solid-colored wires (white, black, red, blue) are the sub-to-amp wires. The large connector goes up behind the dash.


These are the wires found on the connector that exits the amp.




The connector contains the following:

• Red/Green
• Red/Green
• Blue/Black
• Blue/Black
• Red/Purple
• Green/Purple
• Green/White

With a test light, I've been trying to find what wire turns on the amp with ignition/key. All I've been able to determine is that both Red/Green wires are constant 12v leads. I'm assuming that the Blue/Black wires are grounds.

That leaves:

• Red/Purple
• Green/Purple
• Green/White

Note that these wires also appear on the small connector I referenced to above. I'm assuming that means that two of them are the subwoofer's positive and negative terminals, but I have no idea what to do now to determine which is which.

Any help would be a blessing. Hell, help me finally figure this out and I'll send a couple of bucks your way.

Specs:
Ford Ranger FX4 2009
Pioneer Premium Sound System

 

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those definitely look like what you need, not sure which because I haven't personal experience with it, but I should think the first one.

 

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