What Impedence speakers are in the Rear Door?

Does anyone know the color code (+ / -) for the Drivers & Passenger Speaker Wires?

I just did a search for "ohms" and guess what I found?

http://www.brickboard.com/AWD/volvo/861959/850/8_ohm_speakers.html

That should answer your question!

Klaus
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I still miss my 164 and my 854T. Just driving a V70R :)

You can use a battery (like AA) and a bit of wire to determine which wires are positive/negative. take a guess at a negative terminal and hold it to the neg. side of the battery. Then touch the other speaker terminal or wire to the pos. side of the battery. If the speaker moves in, you've found positive. If it pops out, then you're backwards and you're touching pos. to neg..

That's a handy trick for when you're behind the dash wondering which wires go to which speaker. Trick is you need to see the speaker which is usually hidden behind a grille. If you already have the speaker out, check on and around the speaker terminals for a "+/-" marking.

I'm no help when it comes to the impedence. For reasons I do not remember I had always thought that the stock speakers were six Ohm.

--Will
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850 / Mini

Please confirm that when wired correctly the positive side of a AA Battery will "Pull In" the speaker? When I do the test on both my car speakers and my home Bose, the speaker "Pushes Out", not in....
Thanks

Though this is an excellent tip/trick, the speakers are marked what I'm unsure of is the wiring itself... One wire on the left read door is Brown with Black stripe and the other is Brown with White Stripe...

I believe all of the door speakers are 8 Ohm. The speakers really don't care which is positive or negative in respect to the wiring, but if you put the 2 connectors against each other they just might only fit well in one direction.

The haynes manual has a diagram on page 12-39, only showing black and white wires.

Klaus
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I still miss my 164 and my 854T. Just driving a V70R :)

It's important to make sure that the left and right speakers (and front and rear speakers) are all wired with their polarities the same.

Other wise you'll have out of phase audio.
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Formerly 'HearToTemptYou'

I thought they might be 8 ohm. But, all the repacement 4 & 5" have an Impedence of 4 ohm... I'm not sure how that would work if the rest of the speakers are 8 ohm....

"I thought they might be 8 ohm. But, all the repacement 4 & 5" have an Impedence of 4 ohm... I'm not sure how that would work if the rest of the speakers are 8 ohm.... "

Simply put, it won't. Your rear door and deck speakers are wired in parallel, so the amp sees a 4 ohm load (2 8 ohm loads in parallel = 4 ohms). If you replace the 8 ohm speakers with 4 ohm, the amp sees 2 ohms. This is so very close to a short circuit that the amp will, at a minimum be very distorted. More likely, the output transistors in the amp will be toast.

To retain the 8 speaker set up, you need an aftermarket amp capable of successfully driving a 2 ohm load. Such an amp will likely go in the trunk, meaning that all your speaker wires have to be redone for the new amp location.

It will, however, sound a whole lot better if you do replace all the speakers and get the amp. The cost of doing this explains why I still have all the factory speakers in mine.

A boneyard is your best source for a single replacement speaker.

Good luck.

Agreed. This makes much better sense than adding an amp and rewiring. The amp most likely would not like the reduced impedance, as you pointed out. There are a lot (sadly) of 850's that have moved on to brighter shores - it should be fairly easy to find a good used speaker.

Just make sure the magnet is still stuck to it!
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I still miss my 164 and my 854T. Just driving a V70R :)

Agree... That's what happen in the 1st place and I've had the magnet issue on my previous 940 deck speakers....

So, to me it may make sense to change all four door speakers and leave the dash for now.... That assumes that the dash speakers are not also in Parallel?? and should not cause a load problem..