2008 252 radio speaker problem

[jadifeo252]

I am new to the site. Have a 2008 252 Cobalt since new. All three left side radio speakers are not working. I replaced the radio and still not good. I take a left side speaker that is not working and put it on the right side and it works fine. I switched the inputs coming from the radio from left to right to check to see if I have power coming out of radio and found that the left side harness that goes to the speakers is not working. The harness goes through the head door on this model and I'm wondering if I have a pinched wire somewhere along the way.....Thanks

[AsLan7]

Hey jadifeo252.

Great to have u on the CChat forum. So glad you found us!

Sorry to hear about your radio issue on the 252.

Definitely could be a wire cutoff. How do you know it’s not the left side output on the head unit that’s bad?

Btw, feel free to start a new thread with an intro if you so desire. We love pics and stories. Curious how you got into Cobalts?

.

[thunder550]

Welcome!!

Easiest thing to do for starters would be to get a multimeter with continuity check and put a probe on both ends (stereo end and speaker end) of each wire. This will tell you if the wires are broken somewhere, and which one. Options would vary from there depending on what you find.

[Big Block Power]

I'm thinking you have s open connector some where. If it's shorted that can wreck your head unit. I personally don't like the wires Cobalt use to wire speakers, I would run new ones. For sure to that side of the boat if not all of them. It would be faster than trying to hunt it down. I take it you don't have a amp?
Oh welcome from Wisconsin. I didn't look yet but did you go to the new member section yet and post pictures. Thanks again. Darn A7 is beating me again. Darn he's fast.I can't post this till he's done.lol and T55000 too. Wow. You guys are on fire today. Lol
Also check your balance setting on your radio.lol

[AsLan7]

[Driller]

Welcome from Texas Jad.

You mention the radio and but have you checked the amp? Could be a lose wire. My radio feeds the amp which then feeds the speakers.

[Bfun220]

I am new to the site. Have a 2008 252 Cobalt since new. All three left side radio speakers are not working. I replaced the radio and still not good. I take a left side speaker that is not working and put it on the right side and it works fine. I switched the inputs coming from the radio from left to right to check to see if I have power coming out of radio and found that the left side harness that goes to the speakers is not working. The harness goes through the head door on this model and I'm wondering if I have a pinched wire somewhere along the way.....Thanks

Welcome from Wisconsin.
You've done most of the things I would have suggested. I assume it's not your balance setting, do you have an amp ? To check speaker wires I would turn boat power off. Then short your a pair of nonworking speaker wires together. Use a multimeter and see if you have continuity through the wires. As BB suggested you may want to just run new wire.

[jadifeo252]

all excellent ideas I think I will run a set of speaker wires from the unit to one of the speakers and see what happens. Funny no one thinks it could be a grounding problem....that was my first thought.

[thunder550]

Speakers aren't individually grounded, so if some are working I can't see how a grounding problem would cause what you are experiencing.

[Big Block Power]

Speakers aren't individually grounded, so if some are working I can't see how a grounding problem would cause what you are experiencing.

Correct. Not a grounding issue. If anything something is open. Unless the head or amp took a crap.