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Sorry, the problem is that there were about 10 different stereo systems available, and they seemed to swap parts out ad-hoc.
Jay
“Faster, Faster, until the thrill of speed overcomes the fear of death.” - Hunter S. Thompson
"I couldn't find the sports car of my dreams, so I built it myself." ~Dr. Ferdinand Porsche
"968Forums, a quaint little drinking community with a serious horsepower problem"
"Life's journey is not to arrive at the grave safely in a well-preserved body, but rather to skid in sideways, totally worn-out, shouting, 'Holy sh*t! What a ride!'"- Unknown
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Sam is right, try the speakers with a known working unit first. The resistors are used to separate the frequencies for the different components. If they (or the choke coils) fail, the speakers will not work, even though the actual speakers are fine.
My cab was born with the basic stereo system, I have replaced the head unit and the rear speakers, but the door speakers still seem to work well. A nav unit with a power amp may be in my future, although I have lots of things further up on the priority list.
Matt
1992 968 Cabriolet
Volvo S60 Turbo AWD
Lexus RX 300 AWD
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my recollection is that some stereos had two amps. My 92 cab, which had only the 6 speaker set-up, had one amp under the driver's seat. My 92 coupe, which had the 8 speaker set up, had two identical amps, one under each seat, and I think that one amp did the front speakers and one amp did the rears. Note that if the little cross-over system in the front door panel fails then you might get a failed tweeter or woofer on that side (or even a dead side) , but it ought not to impact the other side. The back speakers did not have a separate cross over units - i think that they were a two-way speaker with a capacitor for the tweeter cone.
I would unplug the rear speaker harness from the amp and plug the front speaker harness in. If the front speakers work then you are missing an amp. You might also ensure that everything is properly plugged into the head unit. Have you looked under the passenger seat?
The reality is that the head units and power amps in 1992-1995 were low power and of minimal quality. It might be easier to buy a new head unit and simply abandon the power amps. The speakers will plug directly into the new amp with perhaps a bit of cutting and splicing. Be sure to get the phasing correct. Even a modest new amp will likely be better that the original ones. There is a lot of discussion here on stereos.
Have fun.
Kim Strong, Nova Scotia
Baron of Bugtussle and Lord of Wigtownshire, Scotland
2022 Mustang Mach-E
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Quote:
The reality is that the head units and power amps in 1992-1995 were low power and of minimal quality. It might be easier to buy a new head unit and simply abandon the power amps.
That's what Darryl did for me...still have a buzz in the passenger door when I turn right, but at least I have rear speakers.
Jay
“Faster, Faster, until the thrill of speed overcomes the fear of death.” - Hunter S. Thompson
"I couldn't find the sports car of my dreams, so I built it myself." ~Dr. Ferdinand Porsche
"968Forums, a quaint little drinking community with a serious horsepower problem"
"Life's journey is not to arrive at the grave safely in a well-preserved body, but rather to skid in sideways, totally worn-out, shouting, 'Holy sh*t! What a ride!'"- Unknown
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The factory stuff is junk compared to the aftermarket. Unless you are after originality at all cost, I would dump all the stuff that came in the car.
92 968 cab (cobalt blue/black top/grey int)
87 944S
19 Audi A6 3.0T
03 Toyota Tundra
