Deck stays on but music cuts out.
Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=72913
Printed Date: September 04, 2025 at 10:38 PM
Topic: Deck stays on but music cuts out.
Posted By: fanman
Subject: Deck stays on but music cuts out.
Date Posted: February 15, 2006 at 10:12 PM
I just purchased a new headunit pioneer - deh7700. After purchasing a new wiring harness for my 2002 gmc sierra i attatched the harness to the headunits harness. One the deck was fully wired, RCA's and remote wire were then installed. Once the deck powers on, rear speakers which are connected direct to the deck play music for about 5 seconds then stop. Signal to my front speakers doesnt seem to be going through, and signal to my sub is very faint.. even with volume turned way up. The deck stays powered on and all features work, other then sending signals to the speakers. Anyone have any ideas on what could be causing this problem? amp is a PG Xenon 100.4. Thanks.
Replies:
Posted By: Silvrefox
Date Posted: February 15, 2006 at 10:27 PM
Your problem may be as easy as a pinched RCA cord or as crummy as a bad amp. Checking your RCA's is easy--just get a set you know is good and take it straight from the deck to the amp. If that ain't it, check your speakers. The best way it to meter them with a VMM and check the ohm loads on each channel, another way is with a noise generator. Good ol' boys have been known to use a 9v battery and make the speakers pop to make sure they're hooked up. If your speakers are in working order, then there's only one other place to check: the amp. I'm not familiar with PG, but I know I've had customers bring their amps with similar symptoms and what happened is they hit the switches on the amp and screwed up the settings. Check it out--hope it helps.
Posted By: chasbot
Date Posted: February 16, 2006 at 7:47 PM
I got a pioneer premier deh something or other, i used to know the model by heart, but it was about a year ago and i have since then let it slip my mind, I do recall having the exact same problem, It stayed on a bit longer at lower volume, but as soon as it was turned up it would die on me until the power was reset, what you have done is hooked the wrong power wires up, there are 3 power wires to a stock car stereo, 12v always on (for the clock memory), 12v switched (to power the unit when the car is on), and there is a third for the factory stereo system which allowed the stock deck's display light to turn on and off and dim with the headlights. I had the exact same problem and couldn't figure out what the hell it was for the longest time, then I noticed something weird happened when I played with the lights. Again I don't remember specific details because it was a year ago, but I am pretty sure that you will be able to overcome your problem by tracing the wires out and connecting the right power wires to the right places. I think the colors were yellow red and pink? not too sure, if you have access to a multimeter it will make your job much easier, the always on power should show 12v when the car is off, the switched power should show 12v or more when the key is turned, and the wire which I would bet you have hooked up to the switched power wire of your deck, will vary in voltage when you play with the headlights. GOOD LUCK!
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