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It looks like I did it now.

While trying to install an aftermarket amplifier (Rockford Fosgate 500s) and aftermarket subwoofer (Polk MOMO MM12) on to my factory head unit... I tried locating the 12v + wire on my Toyota Harness. However, on the 1995 Toyota Avalon XLS with doubledin head unit, the wire harness is different because it goes into a stock amplifier.

Well, thinking the gray colored wire was universally the Toyota wire for 12v + ACC ignition wire, I tapped right into it with the REM remote turn on wire. I proceeded attaching one probe from my multimeter onto the REM lead, and the other probe onto a screw. I pressed the CD button on my factory head unit and SUCCESS!:D I had a reading on my multimeter and my CD changer was playing my CD.

Immediately like a second after, my radio switched from CD mode into radio mode. I tried pressing the CD button to play from the changer and it would not respond. *GAME OVER*:thumbdown :disappoin :thumbdown

I think I fried something, what I dont know. The radio function still works... as for the CD changer function... GONE.

I know it's a long shot, but does anyone know what to do or how to fix this? I checked the fuse for CIG/RADIO and it is not blown. I really don't know what to do.

Since I am on the subject, my factory radio clearly does not have a remote turn on lead to connect an aftermarket amplifier. I know my antenna only activates when I use the radio so it would not activate when I use my CD changer and I can't get access into my cigarette lighter because I dont know how to remove some panels blocking it. Are there any other 12v + sources for the REM remote turn on wire for an aftermarket amp??
 

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That's the problem with just trying to tap into the low-current remote wire for the OEM amp'ed system. You should've added a 30-A relay, either SPST or SPDT, so there's more current to the remote wire. In the OEM amp'ed system, it's the OEM amp that powers the radio, not the conventional method. Try and find a reset button on the CD changer and see if that could somehow revive it.
 
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