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1988 2m4 Radio/Speaker problems by xquaid
Started on: 09-23-2013 12:53 PM
Replies: 6 (148 views)
Last post by: xquaid on 09-27-2013 12:45 PM
xquaid
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Report this Post09-23-2013 12:53 PM Click Here to See the Profile for xquaidClick Here to visit xquaid's HomePageSend a Private Message to xquaidEdit/Delete MessageReply w/QuoteDirect Link to This Post
My 1988 Fiero 2m4 has no sound coming from the right 2 passenger speakers or the driver side rear speaker.

I noted the head unit knob that fades sound from left to right side has NO effect on speaker sound.

Basically I have 1 functioning speaker. 99% sure it is the head unit. Is this common?

I do not want anything fancy in my car. Can I install a cassette player I have? Should I go ahead and put new speakers in since mine are 25 years old?

Thanks in advance,

Justin

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2.5
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Report this Post09-25-2013 02:23 PM Click Here to See the Profile for 2.5Send a Private Message to 2.5Edit/Delete MessageReply w/QuoteDirect Link to This Post
Yep it would be the head unit if it is factory. I would replace the speakers, as their sound is very sub par, but you dont have to. The fronts are easy to replace, the rears not so much.
You can pop off the front speaker grills and unscrew the speakers, unplug them and swap them to see if they work.

[This message has been edited by 2.5 (edited 09-25-2013).]

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92wastheyear
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Report this Post09-25-2013 03:42 PM Click Here to See the Profile for 92wastheyearClick Here to Email 92wastheyearSend a Private Message to 92wastheyearEdit/Delete MessageReply w/QuoteDirect Link to This Post
Before fully installing the cassette player, I would test those other speakers and confirm what the issue is. I had an 85 that only played out of one speaker ....it turned out that not only was the head unit bad....but one of the dash speakers was also shot
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2.5
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Report this Post09-25-2013 04:36 PM Click Here to See the Profile for 2.5Send a Private Message to 2.5Edit/Delete MessageReply w/QuoteDirect Link to This Post
 
quote
Originally posted by xquaid:

...
I noted the head unit knob that fades sound from left to right side has NO effect on speaker sound.
...



Wait , so even if you fade full right, the left speaker still works?
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TopNotch
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Report this Post09-25-2013 04:48 PM Click Here to See the Profile for TopNotchClick Here to visit TopNotch's HomePageSend a Private Message to TopNotchEdit/Delete MessageReply w/QuoteDirect Link to This Post
Speakers are easy to test. Just get a multi-meter and set it to the lowest Ohm setting. Touch the leads to the speaker terminals. The speaker should read the same or slightly less Ohms than it's impedance. For example, if it is an 8-ohm speaker, it should read 8 or slightly less Ohms. Also, you should hear some faint static from the speaker as you touch the meter leads to it. If it reads OK, but you don't hear anything, the voice coil could be "frozen".
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xquaid
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Report this Post09-27-2013 12:44 PM Click Here to See the Profile for xquaidClick Here to visit xquaid's HomePageSend a Private Message to xquaidEdit/Delete MessageReply w/QuoteDirect Link to This Post
 
quote
Originally posted by 2.5:


Wait , so even if you fade full right, the left speaker still works?


Correct.
No matter what I do with the knobs, the sound only comes from the front left speaker.

Any suggestions for inexpensive speakers? (I already have a cassette player) I like my old school radio...after all, I am the one using the car! :P

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xquaid
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Report this Post09-27-2013 12:45 PM Click Here to See the Profile for xquaidClick Here to visit xquaid's HomePageSend a Private Message to xquaidEdit/Delete MessageReply w/QuoteDirect Link to This Post

xquaid

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Member since Dec 2007
 
quote
Originally posted by TopNotch:

Speakers are easy to test. Just get a multi-meter and set it to the lowest Ohm setting. Touch the leads to the speaker terminals. The speaker should read the same or slightly less Ohms than it's impedance. For example, if it is an 8-ohm speaker, it should read 8 or slightly less Ohms. Also, you should hear some faint static from the speaker as you touch the meter leads to it. If it reads OK, but you don't hear anything, the voice coil could be "frozen".


Thank you for the suggestion. At this time, I will try the head unit first, then adjust fire from there.

- Justin

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