Strange Issue Started

[bbroge]

Hi everyone. I installed a system in my 2002 blazer a little over a year ago. It has been working excellent for a long time except for this past week. I needed to unhook my subwoofer and amp to transport some stuff one day and when I hooked everything back up (I am 100% sure it is hooked up the exact same way) I'm getting all sorts of strange issues.

-When I turn the key to the accessory position the amp and stereo power on as normal. However, I can barely hear audio from the speakers even at max volume and all the settings on the amp are in their normal positions. I even reset the stereo to defaults. In addition to this if I tap the power window switch the amp and receiver power off and back on.

-When I turn the key to the on position (but not start the engine) the stereo and amp continuously turn off and on.

-When I start the engine it seems to work fine, everything seems fine actually. I can even hear audio playing as it normally would through all the speakers.

Here is what I have:

Infinity Kappa Five Amp

Kappa 693.9i 6x9 Speaker Pair (2ohm impedance)

Kappa 462.9cfp 4x6 Pair (2ohm impedance)

Kappa 6-1/2" 3-way Speaker Pair (2ohm impedance)

Pioneer DEH-P7200HD

It almost seems like there is a major short somewhere but why would it be working in certain cases? I am really am stumped on this. I even completely disconnected the amplifier and sub and tried using just the stereo without any speakers hooked up and I still get the reset effect (continuously turning off and on) with the stereo when the key is in the on position.

Thank you and I appreciate any assistance with this.

Click to read more...

 

[TnT_Sounds 10+ year member]

is everything wired in correctly? Tapping an auxilary switch such as your window switch and everything working would mean then your system is all tied into your window switch. Need to check voltage at the amp with a dmm. Most cars nowadays are all computer and if you have a short somewhere in factory equipment it has many other affects on things. What happens when you tap the switch? Did you check to make sure RCAs are still ok? Start troubleshooting. Take everything apart and put bck together. Easiest way to find a short would be to test each wire for continuity.

 

---------- Post added at 11:35 PM ---------- Previous post was at 11:34 PM ----------

 

pics and vids could aid in diagnosing the problem.

 

[bbroge]

Thanks for the quick response. Tapping the power window switch only seems to have an effect on the stereo and amp when I turn the key to the on position. When I have the engine running it doesn't have an effect.... meaning everything works as normal. In this case I would think all of the RCA's are fine as I am getting audio through all speakers. I wouldn't think checking the amp voltage here would help since even disconnecting all the wires to the amp the issue remains as the stereo reacts the same ways with the key in the on position when everything at the amp is disconnected. However I am willing to try anything to get this resolved. It's getting quite frustrating....I will post back the results I find including after testing for continuity.

 

[bbroge]

Well.... I'm back to where I started. Everything checks out fine. All my speaker wires have continuity and the voltages seem correct. Any other ideas?

 

[audiobaun 5,000+ posts]

THe amp grounds is good/moved?Maybe even your battery might need be checked,bad battery creates a crap load of electrical issues.Wouldnt hurt to go get it tested at Orielys, or Autozone with and without a load.ITS FREE, just a suggestion?//content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif