Unit not turning on again solutions:
Over the past few months there have been sporadic reports of units not turning
on again after installation. When the units are bench tested again this
result cannot be duplicated and so the solution needs to be within the car.
There are a few solutions available
1) Temporary solution A
The unit uses both 12V Constant (Yellow) and 12V Accessories (Red)
When the unit is working remove each fuse in turn (but NOT the radio fuse) till
the unit turns off. Once this constant power fuse is known it will be a
matter of removing this fuse to re-set the unit
2) Temporary solution B
Remove the earth from the battery for a few minutes will re-set the unit.
3) Permanent solution C
Simply cut the constant Yellow wiring and join it to the red accessories wire.
This will mean the unit will work each time the accessories is on but the
drawback is that you will loose the clock. Also the unit will start each
time with the radio. If you would like a clock then the road mapping can
be set to display the current time.
4) Permanent Solution D
One of the issues is due to a design fault in many cars where the manufacturer
will reduce the amount of copper used to reduce the cost. This results in
thin wiring to the stereo as the factory units need a lot less power than
factory radios. And so there is a 2 part solution.
A) run a heavy gauge power wire direct from the battery to the
stereos Yellow constant wire
B) Run a 12v relay from the accessories wire which will provide
power to the unit from the same heavy gage wire. You will also need
to an inline fuse for this. Should the unit still not work you can always
re-set the unit by removing this fuse.