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Car Stereo Installation - Full Power Problem - New Stereo

Hi. First post. I HAD an old Qwestar crappy Stereo/MP3 head unit hooked up to 4 decent Inifity speakers, a 200watt Kenwood AMP and one big 10 inch subwoofer in an enclosure in the trunk. One day, their is no power to the stereo at all. I tried everything (as far as pushing buttons/fiddling with the faceplate) but I could not get it to power on. FYI - when I took the faceplate off, the 'fake alarm red blinking light' was blinking - which is normal when taking off the faceplate. The CD tray would even accept cds but wouldn't play them. They would stay in there until I pushed eject. Well, I was tired of this Qwestar (Circuit City) POS (it was decent enough but the LED/LCD was flaking out and the MP3 navigation was SLOOOOOOOOWW) - so this was my excuse to tell the wife that I was off to buy a new stereo for the car. I searched high and low and wanted a unit that would at least play MP3s through a USB port. I settled on the Sony CDX-GT610UI. As far as I know, I have hooked up everything correctly. I have followed the instructions in the Sony box and also consulted a couple of different, thorough install sites (big thanks to - everything seems to be hooked up correctly. FYI - the old Qwestar - when it was installed, the installer (Circuit City) installed a standard wiring harness so it was really easy to match up the wires, etc. I have attached the RCA cables (red/white) to the back on the RCA IN holes on the back of the unit - however, the only thing (just my theory) that might point to a problem is a tiny wire running along the side of the RCA cables - I'm assuming this is a low voltage power wire? I have matched this up w/the AMP REM wire running from the Sony unit. Otherwise, all of the other wires matched up with the wiring harness. So... I turn on the key, no power/lights come on the Sony unit. HOWEVER, it will accept (auto load) a CD/disc and it will also eject it. But that's all the functions it will perform, given it's current configuration. I realize that the old Qwestar unit most likely suffered from the same problem and that I most likely didn't need to replace it afterall. Also, I have checked all the fuses (near the floorboard) and nothing has blown. Not sure if there are other fuses to check. Also, the amplifier is powered up through a direct connection to my battery. I guess that is all the information I have for now. ANY HELP WOULD BE MUCH APPRECIATED! I bet this is an EASY fix but I just don't know what else I can do. Something tells me it might have something to do with the grounding??? I'm stumped. Thanks in advance! Sorry for the long post!

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Re: Car Stereo Installation - Full Power Problem - New...

The rca cables that thin littel wire u can use it to turn on your amp so it will go the redio amp rem wire and back to the rem for the amp. 

Posted on Oct 14, 2007

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