I had a bunch of stuff in the trunk on one trip when all I got was sound from the front tweeters. I tried tapping the JBL unit under the passenger seat and nothing happened. I rearranged the stuff in the trunk, and rearranged some stuff that was laying against the bottom of the speakers and the bass came back. I think it was pressing on a speaker connector or something...

 

I had a bunch of stuff in the trunk on one trip when all I got was sound from the front tweeters. I tried tapping the JBL unit under the passenger seat and nothing happened. I rearranged the stuff in the trunk, and rearranged some stuff that was laying against the bottom of the speakers and the bass came back. I think it was pressing on a speaker connector or something...

interesting .... we had a camping trip the other weekend
that was when the bass / other speakers stopped, so i might have to look around for damaged wires .....

but that still doesn't explain the loss of tweets up from the other morning ....

 

the static is back .....

this morning the wife comes back inside and says that terrible static sound is back. Again, nothing is on, but i am getting some crazy static/feedback in the rear passanger side deck speaker.

So as a quick fix i just disconnected the speaker output plug from the amp under the seat.

Sound goes away

HELP ME FIND A PERMINANT fix !!!

 

maybe your headunit is just dead

 

if my head unit is dead, why would it only output as static in one speaker ....
i agree it is a possibility, but how can i test / prove it out ?

before i go spending coin on a new headunit, i would want to prove it out
any ideas how to confirm that it is the head unit and not the amp ?

 

Sounds like the amp is bad.

 

yeah might be ....
more i started thinking about it.

even if i pull the fuse from the head unit, and the fuse for the amp.
i still have that feedback / whine / static in just one speaker.
the whine doesn't increase/ decrease with acceleration, so it is not engine related...

kinda makes me think that maybe that speaker wire is making contact with a live power wire.
maybe the insulation rubbed or something.
maybe making contact with like the trunk release, or something back in my trunk ...


Does anyone know if the amp and headunit have any built in protection?
that might cause them to shut down if they see any voltage instead of just the resistance of the speaker....

i guess i need to start tracing wires back to the amp

 

ANYONE HAVE A STEREO WIRING DIAGRAME FOR OUR CARS ??

I TRACED THE SOURCE back to the rear passanger speaker.
It is difficult to explain

but long store short i cut the wires that go to the back speaker and the static sound goes away, but so does the very slight music noises from the other speakers......

apparently removing the rear channel (cut both speakers) doesn't allow the amp to opperate the other channels like i was hoping ....

anyone want to lend me thier amp to try and determine if it is the amp or the headunit ???

 

I had the same problem. It was the underseat amplifier. I bought a used one off someone on this site (pardon me for forgetting his name) installed it and no problems since.

 

Same here! a couple years ago I had a buzzing/hum in my rear speakers even when my stereo was turned off. Turned out to be a bad amplifier under the seat. It was covered under warranty.

 

Toyota dealer wouldn't honor the warranty on my underseat amp., because I had a subwoofer wired into the system. The system was checked by a outside professional who vouched that it was the underseat amp and Toyota still wouldn't budge. He put everything back as it was, factory stock. Two other dealers I went to wouldn't touch it either because the first dealer had put the problem on the computer. :slap: TOYOTA

 

yeah
i have found another thread on another site stating that the trunk lid torsion bars come out of thier clips and slap / hit the underside of the speakers and apparently when you open the trunk, some feedback travels back tot the amp and fries it ....

i have yet to open it up but that is what i am thinking it is ....

 

That is the same speaker that was contacted by my "junk in the trunk" from my above post... I also think the torsion rods from the trunk were pushed up there since there was a "pop" from them when I closed the trunk. Once pressure was relieved, the bass came back (I lost bass, not feedback)

Glad I didn't fry it, it sounds like we had the same issue. I think I'm going to get some old school jute-backed speaker undies from the junkyard to slap under them, to keep it from happening again inadvertently just to be safe.

 

well i had time to open it up
here it is ...

problem now is i don't see anything wrong with it .... so now i have no idea what to check next.

anyone have a amp they wanna let me barrow so i can see if it is the amp or the headunit ???

 

Def the amp. Usually the amp will smoke leaving a burning smell inside the car or the speaks can just make a loud boom when it dies. You also want to check all the speakers in the vehicle after replacing the amp cuz the boom @ times damages the speakers. And that would be covered under 36 months or 36k miles

 

My fix for the blown camry 2007 xle Amp

Thanks everyone for your help, but wanted to post my solution in all the forums that I read:

I have a 2007, Camry XLE, V6.

Thought I post this as some of you might be looking for an answer.

So, if you recently overpacked your trunk, you might have knocked a bar in the trunk loose. If the stuff in your trunk presses the bar against the rear speakers, it will short circuit your JBL amp located under the front passenger seat.

This happened to me and I smelled some electrical burning while driving. Also, I felt an electrical field in the car. You should bring it to the dealer immediately, but they might quote you some expensive price.

If you want to buy time to research like I did, you need to first move your passenger front seat to the most forward position. Next, disconnect your battery by disconnecting the negative (black) wire only. You have to disconnect the battery because even if the car is turned off, there is an electric current going to the amp.

Next, pull off the black cover of the amp. you need to disconnect the three wire inserts by depressing the button on top of each wire. Then, disconnect the ground wire by loosening the screw. Finally, you can unscrew the main screw that keeps the amp in place.

Be careful as I believe the amp still has charge in it. Don't leave it anywhere as I left it on my desk and a few days, I heard some burning noise and then a strong electrical odor. I ended up leaving it out in my back yard.

The other thing is that you need to check if your fuse is blown under the car hood. Most likely it is. You need to go to the car store and buy a micro profile fuse. There are three different fuses out there and the one you need for the Camry is the micro profile fuse one 25a. The back cover of the fuse box will tell you where the amp one is. You can tell that it's burnt if the connection no longer is bridged together underneath the plastic. Inside the fuse cover, you should have a tool to help you pull the fuses out.

I ended up looking online for a used amp with the same model number, 86280-OW390. Although, this model has been replaced by a newer one: 86280-OW391

It costs around $665 if you bought it new online. I found a recycling used parts place for $220. I read someone was able to buy it for $125. Ebay was selling it for $350+ when I looked.

So I figured I'll buy the used one and see if it works. If my speakers blew out, then I would have to replace everything. I would have sold the old one on ebay for the price I bought it or more.

In the end, the old one worked from a 2009 camry and I am pretty happy.

Last, I wrapped electrical tape around the bars in the trunk where it could have made contact with the speakers. There are two bars and I wrapped the possible contact points there too just to be safe.

I hope this helps someone out there. It was a headache to do, but glad it's resolved now. I also read that some 2007 camries can catch on fire. This was definitely a potential candidate.