Ipod nano plugged in but only showing up as USB storage device

JVC KS-PD100 iPod Interface Adapter (257KSPD100, sold separately). This optional iPod Interface Adapter supports audio playback for the following iPod models - iPod click-wheel (3rd gen), iPod photo (4th gen), iPod mini (1st/2nd gen), iPod nano (1st/2nd/3rd/4th gen), iPod video (5th gen), and iPod classic (80/120/160GB). The KS-PD100 is not compatible with the iPod touch (1st/2nd/3rd gen), iPod nano (5th gen), or iPhone (2G/3G/3GS). This iPod interface will also not charge the iPod nano (4th generation). *Apple firmware updates may change functionality results.

There u go.....

you mighht have to format the ipod to mac format

Try doing this: Toggle the hold switch and put it back in the off position. Then press and hold the center button and the menu button simultaneously for ten seconds and the apple symbol should come up on the screen. Then it should work like normal. Hope this helps!

About your recent purchase of
16GB 4th Gen Slim MP3 MP4 Media Player with FM radio

You have been sold a fake sized player. it is hacked to show 16GB actual size may be around 1GB to 8GB. test your player with "H2TESTW 1.4" you will find it the first hit on www.google.com let other people know and open a dispute on paypal, you have been sold a fake item. Do not return the item for refund as sellers address is very likely wrong, useless to wait for a replacement player because they all are hacked. Get a partial refund. I paid 35usd, got 20usd refunded just now.

About your problem.
The player doesn't require anything works with vista and xp /etc just by plugging it into your computer and then turn it on, it will show up on your my computer as a removeable disk.

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look on this link for troubleshooting
http://www.apple.com/support/ipod/five_rs/nano4gen/

I have had exactly the same problem having bought a JBL Radial Micro for my partner for Xmas for use with the Ipod Nano, i contacted JBL via their website and was advised to contact Harmen on 01707278100. I was advised that the new ipod nano (chromatic) would not charge on the JBL radial micro. They stated that this was due to Apple changing the charging pin in the new nano. I have since bought a JBL Stage III. I contacted Harmen before buying this and was advised that the Stage II would not work. Hope that this is of use.

Make sure your not pluged into a USB hub. It will work if its plugged directly into a USB port on your computer.

first of all
what operating system are you useing?
is this the first time its been pluged in?
I know that you need your service packs 1 and 2
you need to go to your device manager and uninstall it but dont unplug or reboot at this point. go to add hardware and install it there you might have to tell it it's a mass storage device.
it might be formated wrong.

I’m happy to assist further over the phone at https://www.6ya.com/expert/james_1cb31da1bc8c6102

It's in disk mode and the computer thinks that it is only a storage device. You need to reset it to get it back to normal.

You can reset your ipod by holding down the menu and select (round button in the center) buttons down for at least 10 seconds. You'll see an apple logo flash, that's when you stop pressing the buttons. It will shut off, then back on.