95 Ford AeroStar install question.

[Don S.]

Seems it should be simple, and I should know this, but here goes. So I am installing a Kenwood HU, into a 95 Ford Aerostar. I noticed with the wiring adaptor, There are two one grey and one black, I noticed the speakers were reading speakers impedance except one set. SO I thought to myself, okaaaaay, so went to ohm out the other speakers using the one ground on the working set. and it seems that the speakers are common ground. Colors off of the aftermarket harness adaptor. White and white/Black = 3.5 Ohms Green and white/Black = 3.5 Ohms Purple and white/Black = 3.5 Ohms Grey and white/Black = 3.5 Ohms When putting Green and Green/Black reads open, same with all other clolrs except White and white/Black = 3.5 Ohms. So with long drawn out explination, my question is this, Do I just tie all the speaker lead grounds to that single ground? Or am I going to need to run seperate wires to the 4 speakers due to them being common gorund to make them not common gorund? Will hooking up the 4 channel ground to one common tie point end up burning up the deck as f it were tryiing to use the deck output in a bridged configuration. The reason I ask this because in all my own installs I have always rewired for the speakers.

[ReAX]

I wouldn't use a common ground. I assume your looking at something like this

Constant 12V+ Green/Yellow
Switched 12V+ Yellow/Black
Ground Red or Black
Illumination Blue/Red
Antenna Trigger Orange/Blue
Left Front (+) Orange/Green
Left Front (-) Black/White
Right Front (+) White/Green
Right Front (-) Black/White
Left Rear (+) Pink/Green
Left Rear (-) Pink/Blue
Right Rear (+) Pink/Blue
Right Rear (-) Green/Orange

I would first verify your adapter wasn't made on a monday morning or friday afternoon and they match up to what they should. If they match up, then I would try the battery trick to see which wires go to which speaker. If you come up with the same info, I'd pull the speakers to look for shorts, baring shorts, then I would run new pairs.

[Don S.]

Originally Posted by ReAX

I wouldn't use a common ground. I assume your looking at something like this

I would first verify your adapter wasn't made on a monday morning or friday afternoon and they match up to what they should. If they match up, then I would try the battery trick to see which wires go to which speaker. If you come up with the same info, I'd pull the speakers to look for shorts, baring shorts, then I would run new pairs.

Yeah Actually every speaker works if I tie all the kenwoods negative speaker leads to the harnesses White/black. then the corresponding positive lead together i.e. purple lead from the kenwood to the harness adaptor.

So it's like this,

White = Front L +
White/black = Front L -
Grey = Front R +
White/black = Front R -
Green = Rear L +
White/black = Rear L -
Grey = Rear R +
White/black = Rear R -

I verified this with powering each speaker off of the headunit. One channel hooked up then ran through the various ways to hook it up.

So that is the only way there is sound from the speakers. So I am going to have to re-wire the speakers then I guess.

[ReAX]

If you want to sound good, that's what I would suggest.

[Don S.]

Originally Posted by ReAX

If you want to sound good, that's what I would suggest.

Yeah I usually go that route with any of my own installs, this wa just some eles rig. I jusy have never had to deal with a common groud setup.