2000 mitsubishi galant
Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=124467
Printed Date: July 18, 2025 at 9:46 PM
Topic: 2000 mitsubishi galant
Posted By: ganold54
Subject: 2000 mitsubishi galant
Date Posted: November 15, 2010 at 6:25 PM
Hey guys I have a 2000 Mitsubishi Galant with the rear window antenna and ever since a got a new stereo system my radio has a lot of static on stations that my stock HU picked up very well. I have already tried a different HU and it still doesn't work so I have come to the conclusion that my antenna wiring has a problem somewhere. I was hoping that one of you guys know how the antenna is wired and where it is wired too.
Replies:
Posted By: awdeclipse
Date Posted: November 15, 2010 at 7:30 PM
Did you have to install an antenna adapter with your new stereo?
Posted By: KPierson
Date Posted: November 15, 2010 at 7:47 PM
I would check to make sure the power antenna output (or amp remote turn on output) is hooked up to the factory harness. The wire should be either blue or blue/white.
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Kevin Pierson
Posted By: ganold54
Date Posted: November 15, 2010 at 8:26 PM
The new HU is a Kenwood KDC-MP745U, and it didn't come with a antenna adapter. My stock HU didn't have one either.
For the power antenna output where would i connect it to?
This is the wiring diagram for this car.
https://www.the12volt.com/installbay/stereodetail/1558.html
Posted By: i am an idiot
Date Posted: November 15, 2010 at 9:09 PM
Long shot, but do you have your amplifiers mounted near the antenna? What kind of amplifiers do you have? Try removing the fuse or the remote wire from your bass amp. An amplifier's power supply can generate Radio Frequency Interference.
Posted By: ganold54
Date Posted: November 15, 2010 at 10:17 PM
That actually a good idea i will try that also. I have a Alpine MRP t220.
Posted By: ganold54
Date Posted: November 15, 2010 at 10:32 PM
I Pulled out the fuse which would stop powering the amp and the radio still gets static.
Posted By: ganold54
Date Posted: November 15, 2010 at 10:45 PM
I think KPierson is right. Are you sure that is the right wire for antenna power that would come from the factory harness?
Posted By: i am an idiot
Date Posted: November 15, 2010 at 11:04 PM
Did you purchase the wiring harness to install the aftermarket radio? if so, plug the factory radio back into the vehicle. Now using a volt meter, check for a wire that has 12 volts on it when the radio is turned on, and has no voltage when the radio is turned off. If you do find such a wire, there is a real good chance that it is the power wire for the antenna.
Posted By: ganold54
Date Posted: November 15, 2010 at 11:25 PM
The Kenwood HU came with a wiring harness. The antenna power wire will probably be the last one that isn't hooked up if there even is one. My dad is saying that with the galant since its a rear window antenna there is no power antenna wire for it and it goes through the black antenna wire.
Posted By: oldspark
Date Posted: November 16, 2010 at 4:54 AM
Not an AM radio? (IE - needs antenna tuning - or is that long gone?)
Posted By: ganold54
Date Posted: November 21, 2010 at 1:32 PM
No I don't think its an AM radio. I plugged my old HU in and it seemed to have the same reception problem, so my only guess is that the antenna wire has a problem somewhere.
Posted By: i am an idiot
Date Posted: November 21, 2010 at 2:43 PM
Peter, I have not seen an antenna trimmer on any modern digital tuned radio. That went away with analog tuners.
Posted By: oldspark
Date Posted: November 21, 2010 at 5:12 PM
Thanks Idiot.
It probably goes with impedance matching... (you know, that some idiot used to think cause amp overheating with HIGHER impedance speakers).
I can't recall if my AM/FMs have or had it, but it was something I read recently - though I presumed "AM" referred to radio age - and I have recently been playing with some car-collectors' AM radios.
And now I am curious - digital tuning is one thing, but impedance tuning? Another trivia for the new (next!) millennium....
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