89 supra stereo wiring diagrams

supraman3000 · 03-10-2011, 06:13 AM

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!!!

cre · 03-10-2011, 07:26 AM

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

supraman3000 · 03-11-2011, 01:35 AM

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

cre · 03-11-2011, 02:21 AM

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.

03-10-2011, 06:13 AM	#1
supraman3000 3" Exhaust Join Date: Feb 2011 Location: blackwood nj Posts: 55 Blog Entries: 1	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!!!

03-10-2011, 07:26 AM	#2
cre Toyota Racing Development Join Date: Apr 2007 Posts: 5,038	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 __________________ If something breaks or you need to contact a member of the administration please post HERE. Unless it's a private or administration matter please post it on the forum. It benefits no one else if car related questions aren't posted for future users and takes away from the time I'm able to spend helping on the rest of the forum. If you're so inclined I'm always more than happy to accept tips via PayPal. Tip Jar --->

03-11-2011, 02:21 AM	#4
cre Toyota Racing Development Join Date: Apr 2007 Posts: 5,038	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. __________________ If something breaks or you need to contact a member of the administration please post HERE. Unless it's a private or administration matter please post it on the forum. It benefits no one else if car related questions aren't posted for future users and takes away from the time I'm able to spend helping on the rest of the forum. If you're so inclined I'm always more than happy to accept tips via PayPal. Tip Jar --->

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03-11-2011, 01:35 AM	#3
supraman3000 3" Exhaust Join Date: Feb 2011 Location: blackwood nj Posts: 55 Blog Entries: 1	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