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Old 03-10-2011, 06:13 AM   #1
supraman3000
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Default 89 supra stereo wiring diagrams

im trying to install my 89 supra stereo head unit(pyle) on the supra and dont know where are the wiring colors going to can someone please help me with pics of wiring diagrams i had a 88 supra but it seams different on my 89 please any help will do thank you!!!
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Old 03-10-2011, 07:26 AM   #2
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This is for the '90 or '91. I believe they're the same from '89 through '93 though. There were two different systems. You'll find the diagrams for both here: http://www.cygnusx1.net/Supra/Librar...x?S=Main&P=132
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Old 03-11-2011, 01:35 AM   #3
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Only one problem...I'm not really used to looking at the wiring diagrams lol I'm more of a " do it, mess it up, and learn from my mistakes, try again" type! So, as dumb as this might sound, are the 2 back seat speakers and the 2 hatch speakers wired together some how? I got the radio in, front and backseat speakers work, but the hatch don't and I can't figure out why
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Old 03-11-2011, 02:21 AM   #4
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Did you even look at the diagrams? If you can't make heads or tails of those wiring diagrams you really need to consider letting a shop finish the job. There are some very complicated diagrams for these cars, but, next to the cigarette lighter those are the easiest.

Pull the grills for the hatch speakers and make sure they're even there. If they are there then yes, they're supposed to be wired with the rear seat speakers. If the speakers have been replaced at some point they may be mismatched and the hatch speakers require more power than the rear seat speakers in which case you won't ever hear them; they'll only whisper when the rest of the system is screaming.



EDIT: and you even asked specifically for diagrams... lol.
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