3 connections you need to check
the red wire needs +12V this is the ignition lin
the yellow wire also needs +12V this is the constant powe
and the black wire needs -12v this is your groun

if thoswe are all hooked up properly then check that you didnt pop
fuse on the H

--
AsianInvasian69

Most decks have two power wires: one for switched power, usually red and
usually marked for the ACCESSORY switch; and one for constant power,
usually yellow and marked something like CLOCK, BACKUP, etc.  For this
purpose, you can connect both together and feed them +12V.  Check the
manual or label on the deck to be sure of the colors; red and yellow are
about 99% universal, but there are a few oddities out there.

The ground wire, typically black, connects to the ground or "-" terminal
of the power supply; if this doesn't work, you can try connecting a wire
from the metal case of the deck to the power supply terminal.

On Jun 10, 11:56 pm, m...@auctioncamera.com wrote:

Mike-
If all your connections are correct, you may check out the current
supplying capability of the transformer. If it can only supply 500mA,
and your stereo requires a couple amps just to power up, then you'll
need a beefier supply. I'm not sure what the normal current draw is
for your stereo, but I would match the supply current capability to
the fuse rating of the stereo.

-Matt