ignition timer killing rca converter

You may want to get output off amp output side if using a line out converter. Or use low output off back of radio through rca cables that have been spliced into wires (only attempt if you have knowledge of what you are doing) After market radio needed a different acc. source. The OEM circuit doesn't provide a switched one. I would find one at ignition harness to sort out the confusion. If new JVC radio had RCA out for front and rear, that is what would be used for input of OEM amp. Also make sure factory amp is getting 12v switched from power antenna out off JVC unit.     Battery          ORANGE          (+)          RADIO HARNESS      Accessory THE RADIO HARNESS DOES NOT PROVIDE A SWITCHED POWER SOURCE.      Ground          BLACK/ WHITE     (-)          RADIO HARNESS      Illumination     GRAY          (+)          RADIO HARNESS      Dimmer          BROWN          (+)          RADIO HARNESS      Amp Turn On     PINK          (+)          RADIO HARNESS      THIS WIRE IS USED TO SUPPLY POWER TO THE REMOTE TAPE OR CD PLAYER IF EQUIPPED.           LF Speaker (+)          TAN           LF Speaker (-)          GRAY           RF Speaker (+)          LIGHT GREEN           RF Speaker (-)          DARK GREEN           LR Speaker (+)          BROWN           LR Speaker (-)          YELLOW           RR Speaker (+)          DARK BLUE           RR Speaker (-)          LIGHT BLUE      Amp Location          MOUNTED BEHIND TRIM IN LEFT SIDE OF TRUNK      Steering Cntrls          OPTIONAL      Speed Cntrl          OPTIONAL      Radio Security          YESThe wire I'm test'n isn't doin' what it's supposed to be doin'... I am so glad I printed that tech sheet, with the wrong info.

Do it right the first time... or I might have to fix it for ya