I have a 99 Dakota, and im replaceing the front door speakers. The wires are green and brown, whats positive and whats negitive? Or does it not matter?

 

Green is +, brown is -. Yes it matters because if you reverse the polarity there won't be any bass response, unless you turn the balance all the way to one side or the other and play only one speaker at a time.

Jimmy

 

It doesn't matter as long as every speaker is connected the same way. This is called "in phase" and as long as they are all in phase, you're good.

 

does any one have a wire diagram, I just want to make sure.
The stock speakers had the brown as positve and green as negitive...?

 

*Haynes Manual page 12-51*

LF- grn
LF+ grn/vio
LR+ wht/red
LR- wht/blk
RR+ tan/vio
RR- tan/blk
RF- blu/blk
RF+ blu/vio

 

It sounds like you may have the old style amplified Infinity system with the amplifier mounted on the front door speaker baskets. Those were the only Dodge/Chrysler systems with green and brown wires at the speaker, and it is also the reason why you are finding the same wire colors in both doors. The green and brown wires are the speaker outputs from the amplifier to the speaker.

Inside the door, follow the wire pigtail from the speaker itself over a few inches towards the door jamb, and you should find a plug from the factory radio wiring harness. It should be attached tot he door with a plastic push-in retainer pin. Pop it out of the hole and at that plug on the radio side of it there should be 4 wires, all in a flat arrangement on the 4-wire harness. The 2 wires in the center are the speaker wires from the radio. You can connect a new speaker to these wires and it will work just fine. All they are is the speaker level inputs to the factory amplifiers on the old style Chrysler-Infinity amplified system. Dodge quit doing them that way in late 1999/early 2000 and put a regular separate main amp still with high level inputs from the factory radio in the passenger's kick panel. They found out that inside a door on a pickup truck is not the best mounting location for an amplifier, plus the separate amp sounds better.

These are the speaker wire colors you should find in your 99 Dakota:

Right Front Spkr (+) Purple
Right Front Spkr (-) Blue w/ Red Stripe

Left Front Spkr (+) Dark Green
Left Front Spkr (-) Brown w/ Red Stripe

Right Rear Spkr (+) Blue w/ White Stripe
Right Rear Spkr (-) Blue w/ Orange Stripe

Left Rear Spkr (+) Brown w/ Yellow Stripe
Left Rear Spkr (-) Brown w/ Blue Stripe

And yes, polarity does matter. It needs to be correct with the correct positive and negative wires from the radio going to the corresponding positive and negative terminals on every speaker. You can not wire all 4 speakers out of phase and still get the same correct sound. If it's wired out of phase you will have no bass response and the system will distort easily.

If you really want to check for polarity on a speaker wire, remove the speaker from the truck, and use a 9-volt battery. Connect one terminal from the battery to each terminal on the speaker. When you do that the speaker will make a popping noise and the speaker cone will move. When you have the positive terminal on the battery connected to the positive terminal of the speaker, and the negative to the negative, the speaker cone will move out, away from the speaker basket (frame). If you have the polarity reversed, the cone will move backwards towards the basket.

Jimmy

 

If you still don't know just buy a $6 dollar circuit tester and that will solve it.

 

I ended up doing the "pop test" with a 9 volt battery and incase any one else with this wire set up wants to know.

Green ( teal ) is Negative
Brown with a Red strip, Is Positive.

Both speakers D/S and P/S in the doors were wired the same.