Alpine MRV-F400 - Remote Turn-On Lead Scenarios; Handling Head Unit Compatibility

Please
check
your
head
unit
for
the
conditions
listed
below:
a.
The
head
unit
does
not
have
a
remote
turn-on
or
power
antenna
lead.
b.
The
head
unit's
power
antenna
lead
is
activated
only
when
the
radio
is
on
(turns
off
in the
tape
or
CD
Mode).
c.
The
head
unit's
power
antenna
lead
is
logic
level
output
(+
+)
5V,
negative
trigger
(grounding
type),
or
cannot
sustain
(+)
12V
when
connected
to
other
equipment
in
addition
to
the
vehicle's
power
antenna.
If
any
of
the
above
conditions
exist,
the
remote
turn-on
lead
of
your
MRV-F400
must
be
connected
to
a
switched
power
source
(ignition)
in
the
vehicle.
Be
sure
to
use
a
3A
fuse
as
close
as
possible
to
this
ignition
tap.
Using
this
connection
method,
the
MRV-F400
will
turn
on
and
stay
on
as
long
as
the
ignition
switch
is
on.
If
this
is
objectionable,
a
SPST
(Single
Pole,
Single
Throw)
switch,
in
addition
to
the
3A
fuse
mentioned
above,
may
be
installed
in-line
on
the
MRV-F400
turn-on
lead.
This
switch
will
then
be
used
to
turn
on
(and
off)
the
MRV-F400,
Therefore,
the
switch
should
be
mounted
so
that
is
accessible
by
the
driver.
Make
sure
the
switch
is
turned
off
when
the
vehicle
is
not
running.
Otherwise,
the
amplifier
will
remain
on
and
drain
the
battery.
ma
(Blue/White)
Fuse
(3A)
Ignition
Source
(+12V)
MRV-F400
_
|
|
| Ares
Power
|
As
close
as
Antenna
possible
to
SPST
Switch
the
vehicle's
(optional)
ignition
tap
Remote Turn-On
Lead
V/
To other Alpine components’
Remote Turn-On Leads