car stereo problem....

[StreetBu]

Here's my .02. Take it out, wire up the ground and the two positive leads to a battery on your bench. Nothing else. Turn it on, see if it works ok with no speakers even hooked up. Then disconnect the power, hookup one speaker and try it again. I would be willing to bet you have 12 volts going into the unit on a speaker wire. If it all works ok on the bench, Take all the old wiring out and start fresh. That will get you squared away. If you have the problem on the bench, you know it another junk radio.

 

[79izfine]

what if he just unplugged one speaker at a time at the radio when its still in the car . what stirkes me is the old system worked fine and only 2 things changed the radio and the speakers

 

[Doober]

Take a voltmeter to the power connector for the radio for good measure

I'm a little stumped what could be doing this so far. Do you have any other aftermarket radios you could try?

 

[maliburacinfreak]

Take a voltmeter to the power connector for the radio for good measure

I'm a little stumped what could be doing this so far. Do you have any other aftermarket radios you could try?

the installer where i bought checked all the wiring with a multimeter. checked voltage, impedence in the speakers thru the wiring, everything he could think of. when he couldnt find the problem in the wiring, he assumed it was the stereo and replaced it. same problem. i tried what 79izfine mentioned and still couldnt figure it out. im beyond stumped. i unhooked all the speakers at the radio and only hooked up one, with new wire. same problem. tried using a different speaker in case it was bad, same problem. even added an extra ground to the radio in case it was week. the only thing left that hasnt been replaced is the switched power wire. guess thats my only hope.

 

[Doober]

I was beginning to wonder that myself. It may be chafed somewhere and some of the strands are broken... can't carry the current as well and heats up? I don't know...

 

[79izfine]

theres still hope you could always do what was posted hooking the radio to a battery and hooking up speakers just a pain pulling it from the car but atleast you will know if its the cars wire harness you never know whos done what to the harness in its travels i know i have seen butchery in some of my cars . also food for thought run one ground (as in not hooked up to the cars harness ground ) direct off the radio to the body/ or chasis one less wire to be concerned about . also for testing run the red power wire off radio directly to a (bat terminal )on the fuse box there could be empty bat terminals atleast on my bu there is . i was thinking maybe a chafed wire also maybe when the car is running the vibration causes it to make contact it sure is a bizarre problem keep plugin gonna find it at some point . my last sugg throw the old radio back in see how it works G/L

 

[maliburacinfreak]

no harness butchering on this car. its a 71k mile little old lady car. still had the stock AM/FM in it. ive honestly been so p1ssed at it that i havent touched it in a week or so. might mess with it some more today. got the week off anyway.

 

[Anonymous]

no harness butchering on this car. its a 71k mile little old lady car. still had the stock AM/FM in it. ive honestly been so p1ssed at it that i havent touched it in a week or so. might mess with it some more today. got the week off anyway.

there should be to hot wires, a red and a yellow. one is constant power and the other is your ignition

 

[Doober]

Only if it had a radio with digital display/station memory. I think he figured this problem out already...