Yesterday I bought an mp3 player for my husband (birthday present) and
we're having problems whenever we set up any settings. We've both read
the manual and can't figure out why everytime we turn off the car, the
settings have been reset. These include background, sound and any
other kind of customized setting. It always goes back to the default
settings of when it was purchased.

One theory that we have is that the head unit is possibly not
receiving the correct power that it needs.

We're both newbies to the car audio world (we had a dinky cassette
player before this) and would appreciate any kind of help.

This is the player we have:
JVC KD-SHX701 MP3 CD Tuner

and we bought it from Halfords (We're located in Manchester, UK)

http://www.halfords.com/opd_product_...&type=3&cat=33


Thank you very much!!

"Kitty" wrote in message
om...
Yesterday I bought an mp3 player for my husband (birthday present) and
we're having problems whenever we set up any settings. We've both read
the manual and can't figure out why everytime we turn off the car, the
settings have been reset. These include background, sound and any
other kind of customized setting. It always goes back to the default
settings of when it was purchased.

One theory that we have is that the head unit is possibly not
receiving the correct power that it needs.

Exactly. There should be two power wires (one red and one yellow I think). The
red should be the one that only gets power when the key is on. The yellow
should get power from a source that is always hot.

One theory that we have is that the head unit is possibly not
receiving the correct power that it needs.

Exactly. There should be two power wires (one red and one yellow I think). The
red should be the one that only gets power when the key is on. The yellow
should get power from a source that is always hot.

Thanks Rick,

I really was hoping it was nothing to do with the head unit itself. I
believe this means it's a trip to the auto electricians. Your
explanation is really very easy to understand, (as most things are
when involving wires) but I'm not quite sure as to what source in a
car is always hot? I am not a car expert by any means, I just know how
to check the oil, tires, water & other bits so if I made ANY attempt
to sort it out, I believe we just might have a little fireworks
display. :P (as most things are when involving wires)

How much and how well do you know about car audio, or cars in general?

I really appreciate your help

"Kitty" wrote in message
m...
One theory that we have is that the head unit is possibly not
receiving the correct power that it needs.

Exactly. There should be two power wires (one red and one yellow I think).
The
red should be the one that only gets power when the key is on. The yellow
should get power from a source that is always hot.

Thanks Rick,

I really was hoping it was nothing to do with the head unit itself. I
believe this means it's a trip to the auto electricians. Your
explanation is really very easy to understand, (as most things are
when involving wires) but I'm not quite sure as to what source in a
car is always hot? I am not a car expert by any means, I just know how
to check the oil, tires, water & other bits so if I made ANY attempt
to sort it out, I believe we just might have a little fireworks
display. :P (as most things are when involving wires)

How much and how well do you know about car audio, or cars in general?

In terms of this group I'm probably a C-minus student :-), but I have installed
stereos in just about every vehicle I've ever owned.

What puzzles me about your situation is that "these days" just about any
installation you would have gotten would have included a wiring harness that
matched the wiring for the head unit with the factory wiring harness on your car
so these things should automatically be addressed properly. You might have a
blown fuse or perhaps the installers botched the job.

"Rick Brandt" wrote in message
...
"Kitty" wrote in message
m...
One theory that we have is that the head unit is possibly not
receiving the correct power that it needs.

Exactly. There should be two power wires (one red and one yellow I
think).
The
red should be the one that only gets power when the key is on. The
yellow
should get power from a source that is always hot.

Thanks Rick,

I really was hoping it was nothing to do with the head unit itself. I
believe this means it's a trip to the auto electricians. Your
explanation is really very easy to understand, (as most things are
when involving wires) but I'm not quite sure as to what source in a
car is always hot? I am not a car expert by any means, I just know how
to check the oil, tires, water & other bits so if I made ANY attempt
to sort it out, I believe we just might have a little fireworks
display. :P (as most things are when involving wires)

How much and how well do you know about car audio, or cars in general?

In terms of this group I'm probably a C-minus student :-), but I have
installed
stereos in just about every vehicle I've ever owned.

What puzzles me about your situation is that "these days" just about any
installation you would have gotten would have included a wiring harness
that
matched the wiring for the head unit with the factory wiring harness on
your car
so these things should automatically be addressed properly. You might
have a
blown fuse or perhaps the installers botched the job.


Harnesses are a huge time-saver, and if one is available I would always use
it for a head unit installation, but they're not foolproof. For example,
many different models of vehicles use the "Volkswagen" standard harness, but
in some vehicles the switched and constant power positions are reversed.
Some Saturn and other GM models use the same size plug in the head unit, but
with different speaker pinouts. Newer GMs have no switched power wire at
all, though there will be a red wire in the harness you buy; and some cars
use the radio's mounting brackets for the ground connection instead of the
harness wire.

So when in doubt, always test the wires.

What puzzles me about your situation is that "these days" just about any
installation you would have gotten would have included a wiring harness
that
matched the wiring for the head unit with the factory wiring harness on
your car
so these things should automatically be addressed properly. You might
have a
blown fuse or perhaps the installers botched the job.


Harnesses are a huge time-saver, and if one is available I would always use
it for a head unit installation, but they're not foolproof. For example,
many different models of vehicles use the "Volkswagen" standard harness, but
in some vehicles the switched and constant power positions are reversed.
Some Saturn and other GM models use the same size plug in the head unit, but
with different speaker pinouts. Newer GMs have no switched power wire at
all, though there will be a red wire in the harness you buy; and some cars
use the radio's mounting brackets for the ground connection instead of the
harness wire.

So when in doubt, always test the wires.


Wouldn't mind getting a little more into car audio.. the only thing
about that hobby is that you could end up spending quite a lot of
money, so before it'd get to that point I need to draw a limit.. hehe

As far as the wiring situation goes, for some reason i guess they're a
bit more picky over here. They won't touch the wiring of the car
(except the part you plug in) because car stereo companies can't get
insured for it. They won't even install speakers (which is the next
thing I'd like to get). They sell them.. and the wiring, but won't
touch it due to insurance. In special casses they will get some sort
of specialist to do it, but it makes things a little bit more
complicated.

I'm originally from Houston, & I remember having a cd player & some
speakers put in (from tweeters I believe). They did everything with
pleasure & explained what they could. So I was a bit surprised when we
found out the limit to what they could do over here, but I guess they
just prefer to be safe than sorry.

I must say, the stereo that we have now is an mp3 player & it is quite
nice. I was reading through some other postings and came across one
regarding theft. I would be completely gutted if this was stolen, but
we've been careful with it & I'm going to definitely follow some the
advice. Fortuanetly, the crime rate is definitely better over here, so
that helps too!

Thanks everyone!