OK...Need a little advice. Bought a DUAL XDM6820 from JC Whitney and got the
wiring harness #1784 and antenna adapter to install in 91GL.  Harness fits
both OEM harnesses behind dash and antenna adapter w/amplifier fits, but
when I connect all wires as instructed...no sound or power on faceplate.  It
is a removeable faceplate and when I take it off there is a blinking red
light showing power is getting through.  I pressed reset and no change.  I
checked fuse #3 and all good.   Placed a call to tech support but closed
till AM.  Any ideas? All other items on fuse work(interior lights, vanity,
etc)Thanks, Michael.
BTW-No power antenna in 91GL? Right?

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Michael in San Antonio
91GL AT 'Gringo'