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Old 06-11-2015, 03:54 PM   #1
Kooter
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Member#: 192013
Join Date: Oct 2008
Default Help with car audio please

Hello all,

Just pick up a 2002 WRX and the stereo seems to be an issue.

The car had an amp/capacitor installed but the wiring scared the hell out of me so I just had a shop pull it all out while tints were installed.

So now onto the issue.

Most of the time there is no audio whatsoever, there are times when it comes back for a minute but its extremely scratchy/static and only through drivers side front speaker. The head unit works fine, there is power to it and it seems to work just fine. I was gonna order an aftermarket unit but a quick search revealed its not HU related (at least I hope so). I assumed that after I pulled that terrible amp wiring job it would fix the issue but it did not.

Is there a common problem with these? I know the previous owner installed aftermarket speakers but not sure what brand/model.

I know next to nothing when it comes to car audio, just fyi.

Any help/pointers appreciated.
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Old 06-11-2015, 04:14 PM   #2
ConBroMitch
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Member#: 345902
Join Date: Feb 2013
Chapter/Region: Tri-State
Location: Long Island
Vehicle:
13 WRX
PBP

Default

Was this an issue before the cap and amp were removed?

Intermittent sound tells me something isn't connected properly. Make sure all speaker wires are connected to each of the speakers and to the back of the HU.

Also, maybe the speakers were amplified from the amp (not just a sub) If the shop pulled that out, there might not be any signal getting from the HU to the speakers. (not likely since you have intermittent sound)

You never really know what the issue is without tearing into the car itself. Unfortunately a lot of people think they can handle a speaker install and 9 times out of 10 will **** it up (aka the previous owner it sounds like)

Without any more info, its hard to diagnose the issue. It could even be a ground wire somewhere. do some research on speaker/HU's in cars. they are relatively simple systems. You might be able to troubleshoot a but more that way.
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Old 06-11-2015, 04:24 PM   #3
Kooter
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Join Date: Oct 2008
Default

Yea, the issue was there before the amp was removed.

Looks like there is a weekend project ahead of me.


Thanks for the info.
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Old 06-11-2015, 06:30 PM   #4
millertime359
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Join Date: Jun 2014
Location: Holland, MI
Vehicle:
2014 Impreza Sport

Default

Only the driver side speaker is having the problem? All the other speakers sound fine?

Are the fronts components? Separate woofer and tweeter with a crossover? If there are components, you will want to test all parts.

If the passenger side sounds fine, I would just swap over the passenger speaker to the driver side and see if it sounds the same.

If it stays the same, then you know you have a wiring or head unit issue. If this is the case, just get some "known good" speaker wire and run directly from the head unit to the speaker. See if that improves. If not, then it may be a head unit issue.

If it sounds better, then you may have a blown speaker.
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Old 06-11-2015, 07:15 PM   #5
Kooter
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Member#: 192013
Join Date: Oct 2008
Default

Ok. So I've done some tests. Wiring is a mess behind the radio. I isolated each speaker through the HU. 3 of four sound fine. Driver side front is super sratchy/static but i can hear some sound through it.

Ill see if i can disconnect it by the harness and if it improves. OH, and when i only had the front driver selected it made noise for about a minute and then no sound at all. I had to turn off the radio and back on to hear sound from the passenger side of the car.

Also, the back of the HU was hot as hell. Is that normal? Almost to the point where you cant touch it.
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Old 06-11-2015, 07:47 PM   #6
Kooter
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Ready to rip my hair out. All the wires are mixed up. speakers connected to the wrong wire. Everything is backwards.
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Old 06-11-2015, 08:27 PM   #7
millertime359
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Join Date: Jun 2014
Location: Holland, MI
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2014 Impreza Sport

Default

Probably best to get the multimeter out then and clean up the wires before you go any further then. If the amp and cap scared you, might want to take it back to the installer to help you out.

The radio can get hot. It does have an amp in to power the speakers. If you were running the radio for a while with it turned up, it could get that hot.
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Old 06-11-2015, 08:53 PM   #8
Kooter
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Member#: 192013
Join Date: Oct 2008
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OK, so i finally figured out which wire was going to the drivers side front and disconnected it. Everything is good now. The only issue is that the wire I had to cut and the wire that I see going through the door to the speaker is different. So somewhere its spliced AGAIN and different wire used.

Id prefer to rewire everything myself and do it properly. Ill need to find the connector because some of the wires have been cut too short.

Any way to run the wire straight to the connector (speaker to connector) without cutting and soldering the wires? Is it easy to do?

what are some good wires out there? also what gauge should I go with. The current one is 16. Im thinking of going to maybe an 18-20.
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Old 06-12-2015, 05:16 PM   #9
millertime359
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Location: Holland, MI
Vehicle:
2014 Impreza Sport

Default

16 or 18 will be fine. If your going to rewire the car just use something like this. Make your life easier: http://www.monoprice.com/Product?c_i...seq=1&format=2

You can re pin the connector if you want. Just have to find the right pins to do it. Not hard once you do. I would get a hold of AE64.com. He might be able to help you source that stuff if that is what you want to do.
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