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No sound from radio


galantrevolution
Member
431/2000


Galant VR-4 org Post #: 1240634 posted 11/25/17 06:57 PM     Remind Me!  Send Private Message   Edit Post      
So I have a problem on my vr4 , it came with a aftermarket radio from Japan the reason I decide to replace the radio is be cause the frequency is different and only revive 2 stations but sound was present , now my problem is the sound from any speaker is gone , I did try another radio and still the same problem , Iím re using the adapter harness the came from japan , it could be that the problem or JDM cars have different wiring for radio ?



431/2000 with Galant RS swap sold
1991 Galant VR4 JDM

Posts: 125 | From: las vegas, nv | Member Since: 08/19/09 | IP: (2600:8801:a03:c9) | Report this post to a Moderator

iceman69510
Turn Right Racing
855/2000
828/1000


Galant VR-4 org Post #: 1240636 posted 11/25/17 07:25 PM     Remind Me!  Send Private Message   Edit Post      
Does the car have the amplifier in the trunk? The 91 US cars do. You likely need to utilize this amp or change wiring to get power to the speakers without it. What radio are you trying to put in?



91 VR4 855 Nile Black
92 VR4 828 Belize Green-Daily driver status
91 VR4 115 Nile Black -SOLD

Posts: 10439 | From: Michigan | Member Since: 03/05/01 | IP: (2600:1702:5a0:37) | Report this post to a Moderator

FlyingEagle
Doesn't Match Anything


Galant VR-4 org Post #: 1240638 posted 11/25/17 07:32 PM     Remind Me!  Send Private Message   Edit Post      
I suspect you have the same wiring, but as you may have noticed the JDM radio only tunes to 89.9 at the highest frequency and starts around 79.1.

Go into the library here on the site and download the factory service manual. This will allow you to see what wires are tapped into the harness and where those harness wires are "supposed" to lead to, IE +/- on each speaker, power constant (usually red), power switched (usually yellow), etc.

Double check the wires in the car, and that they match what is "supposed" to be the wiring setup per the original literature for the radio you are using. Most head units will use a very similar connector for the last 10-15 years for each brand but they are specific to each brand.

Confirm you haven't blown a fuse that may be attached outside the unit or inside the unit if not outside. This is usually only a problem if the unit will not power up.

Once wiring is confirmed, power it all back up things should work at that point.



C53A 1 of the ~1500

Posts: 1517 | From: THE Ottawa | Member Since: 03/05/05 | IP: (135.23.119.78) | Report this post to a Moderator

galantrevolution
Member
431/2000


Galant VR-4 org Post #: 1240648 posted 11/26/17 02:04 PM     Remind Me!  Send Private Message   Edit Post      
The problem was the speaker wiring diagram it change pins from a JDM car to a usdm,



431/2000 with Galant RS swap sold
1991 Galant VR4 JDM

Posts: 125 | From: las vegas, nv | Member Since: 08/19/09 | IP: (2607:fb90:84a3:6) | Report this post to a Moderator

FlyingEagle
Doesn't Match Anything


Galant VR-4 org Post #: 1240667 posted 11/27/17 04:36 PM     Remind Me!  Send Private Message   Edit Post   
Well, that is good information to have handy. It is always nice when it isn't a scenario where key features change depending upon the market your car was delivered to, but still rolled off the same assembly line floor!



C53A 1 of the ~1500

Posts: 1517 | From: THE Ottawa | Member Since: 03/05/05 | IP: (135.23.119.78) | Report this post to a Moderator


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