Stereo problem Bose system
Thread Starter
Cruising
Joined: Jul 2004
Posts: 13
Likes: 0
Stereo problem Bose system
hi guys, I need a little help!!
i just bought a Pioneer stereo for my 89 vette that
has Bose sound in it, it got an speaker adapter and a wiring harness
adapter. I have no sound coming out the speakers. I noticed that the
new radeo does not have 2 or 3 connectors that the old one had. the wiring harness makes no mention of these extra plugs. Does anyone know where to get a diagram of the origional wiring? I have a hanes manual but it only shows typical wiring and not the bose
thanks
Dave
i just bought a Pioneer stereo for my 89 vette that
has Bose sound in it, it got an speaker adapter and a wiring harness
adapter. I have no sound coming out the speakers. I noticed that the
new radeo does not have 2 or 3 connectors that the old one had. the wiring harness makes no mention of these extra plugs. Does anyone know where to get a diagram of the origional wiring? I have a hanes manual but it only shows typical wiring and not the bose
thanks
Dave
Pro
Joined: Nov 2000
Posts: 520
Likes: 0
From: Scranton PA
Dave,
Not sure if you know it but just to be safe, the 89 like yours and mine have amplifiers built onto the speakers, not really sure if it is possible to bypass the amps through the wiring from the new Pioneer or if the adapter and harness your have is suppose to do this. I'd ask from whoever sold you the harness and adapter for this unit(Crutchfield?).. Unfortunately the amps for two of my speakers(left side) seems to have died, Bose setup in these 89's are crazy if you ask me..
Not sure if you know it but just to be safe, the 89 like yours and mine have amplifiers built onto the speakers, not really sure if it is possible to bypass the amps through the wiring from the new Pioneer or if the adapter and harness your have is suppose to do this. I'd ask from whoever sold you the harness and adapter for this unit(Crutchfield?).. Unfortunately the amps for two of my speakers(left side) seems to have died, Bose setup in these 89's are crazy if you ask me..
Instructor
Joined: Jul 2005
Posts: 140
Likes: 2
From: RI
Hello, the wires from those plugs are very important. The black has the power wire when you turn the ignition (yellow), the ground (black), the power antenna (pink), and illumination (gray).
The white connector has the wires for the front speakers. The blue connector is the rear.
To the right hand side, rear of radio, there is a connector with an orange and brown wire. The orange wire is the 12 volt constant battery wire that you will need. The brown is the dimmer which may or may not be applicable on your new radio.
http://www.corvetteradios.com/Page.html
There are two fuses that are vital to your stereo functioning: the radio fuse and the ctsy/clk fuse.
The white connector has the wires for the front speakers. The blue connector is the rear.
To the right hand side, rear of radio, there is a connector with an orange and brown wire. The orange wire is the 12 volt constant battery wire that you will need. The brown is the dimmer which may or may not be applicable on your new radio.
http://www.corvetteradios.com/Page.html
There are two fuses that are vital to your stereo functioning: the radio fuse and the ctsy/clk fuse.
Last edited by 1988redvette; Apr 14, 2007 at 11:04 PM.
Thread Starter
Cruising
Joined: Jul 2004
Posts: 13
Likes: 0
Thanks for the replies guy, however we are not quite to the problem yet.
I know about everything you told me, I have an adapter that interfaces between the Pioneer stereo and the Bose amps. I also have the wiring diagram shown above. What the wiring diagram above does not show is the extra connection (I think that are for the Bose amps) that are on the stock radio.
Where the red, white and black connectors come out of the stock radio is another wire with a connector on it, it kind of shoots out between the casing of the radio. Than there is another one that looks like a thick black outer sleeve with a white sleeved wire as the center conductor. I think there is one more connector also but i can not remember for sure, i need to go down to the garage and look..
I think I am going to plug the stock radio back in and see if there is 12 Volts coming from the radio to any of these connectors, I think at least one of them must be used to power up the amps, maybe through a relay or something
I know about everything you told me, I have an adapter that interfaces between the Pioneer stereo and the Bose amps. I also have the wiring diagram shown above. What the wiring diagram above does not show is the extra connection (I think that are for the Bose amps) that are on the stock radio.
Where the red, white and black connectors come out of the stock radio is another wire with a connector on it, it kind of shoots out between the casing of the radio. Than there is another one that looks like a thick black outer sleeve with a white sleeved wire as the center conductor. I think there is one more connector also but i can not remember for sure, i need to go down to the garage and look..
I think I am going to plug the stock radio back in and see if there is 12 Volts coming from the radio to any of these connectors, I think at least one of them must be used to power up the amps, maybe through a relay or something
Pro
Joined: Oct 2003
Posts: 732
Likes: 2
From: Baxter MN
Hi,
Check the Ohm rating of the Delco-Bose speakers. If they are like the ones I had in my '91 coupe, they were rated at 10 Ohms. That's 2.5 times more than the radio called for. (I also installed a Pioneer).
My solution was to replace all the awful Bose speakers and get medium quality new ones. Now I have acceptable sound from all speakers.
One disappointment I had was when I finally got front speakers I discovered that the location for the front are all wrong for a small speaker. The rear 6x9s sound excellent. But putting a 4" speaker down by one's legs is a poor location for higher frequency sounds.
Best wishes.
Glen
Check the Ohm rating of the Delco-Bose speakers. If they are like the ones I had in my '91 coupe, they were rated at 10 Ohms. That's 2.5 times more than the radio called for. (I also installed a Pioneer).
My solution was to replace all the awful Bose speakers and get medium quality new ones. Now I have acceptable sound from all speakers.
One disappointment I had was when I finally got front speakers I discovered that the location for the front are all wrong for a small speaker. The rear 6x9s sound excellent. But putting a 4" speaker down by one's legs is a poor location for higher frequency sounds.
Best wishes.
Glen
Instructor
Joined: Jul 2005
Posts: 140
Likes: 2
From: RI
I also went with new speakers so I didn't use the pink wire coming from the casing you mentioned or the black/white wire. The manual seems to indicate that they are relay related, but I just ran new speaker wire with new 6.5 Infinity speakers in the doors and rear so I didn't use the bose relay. Good luck.
Team Owner
Joined: Jan 2003
Posts: 20,306
Likes: 242
From: Summerland B.C. Canada
You need to find the pink wire that energizes the amp relay. It needs 12 volts, so tie it into the power antenna or remote amp wire from new deck. 
Here is bose wiring http://members.shaw.ca/agent86/Bose%...o%20Wiring.pdf
Here is bose wiring http://members.shaw.ca/agent86/Bose%...o%20Wiring.pdf
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)
Joe Kucinski
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
10 Revolutionary 'Corvette Firsts' Most People Don't Know
Joe Kucinski
