My kicker iPod docking station displays aux-in and won't play the iPod there is nothing plugged into the aux jack point

If your TV has RCA (L/R) audio outputs, buy a 3.5 mm Male to 2-Male RCA Adapter cable to hook up your TV to the 3.5 mm AUX IN jack on your docking station.

Probably the docking station has either a single push button labeled 'Source/Input' that you press on to change the audio source from 'iPod' to 'Radio/FM' to 'AUX' (the latter only if there is a 'AUX IN' jack on the docking station) or 2 or 3 separate source/input push buttons labeled as above ('AUX' may or may not be there).

I would check to make sure you don't have a cable or headphones plugged into the Audio In jack. If not then I would suspect that you have a newer Ipod touch or classic that is not supported by this dock. Something changed a couple of models ago with ipods and the last two generations haven't been compatible on older devices meant to play through the dock connector. I have the same problem with an older Sony car stereo.
If you do have a newer Ipod then you can either get the patch cable to go from your headphone jack to the Audio in jack on the dock or you will need to get a newer dock.

https://docs.sony.com/release/ICFC1IP.pdf

It could be that some dust or something has got inside the dock and giving a bad connection. Check both devices for damage to the dock connections.

How to Connect an iPod to a Speaker Bar

A speaker bar is a (usually portable) speaker system that includes a dock for an iPod. The unit is usually bar-shaped, with either a rectangular or cylindrical cross-section. Connecting an iPod to a speaker bar is usually as simple as plugging it in. Many speaker bars will also charge the iPod while it is connected. However some do not have an iPod dock, in which case the iPod must be connected by a 3.5mm audio cable.


Instructions

Things You'll Need:

* 3.5mm cable (for some speaker bars)


Turn the iPod on. Look to see if the speaker bar has a dock for the iPod. The dock will fit an iPod perfectly and will generally be located in the center of the speaker bar. There will be a connector that resembles the connector on the docking cable that came with the iPod. Place the iPod on the docking station and turn on the speaker bar. Such is the case with the "2.1 Channel Bar Speaker with Dock for iPod" or the "Yamaha YAS-71BL Front Surround Speaker System"


iPod headphones use a 3.5mm audio cable.



Connect the iPod via the 3.5mm cable. If the speaker bar does not have a docking station it will have a 3.5mm cable connector with a jack like the headphone jack on iPod ear pods. Plug the 3.5mm cable in the iPod headphone jack. Plug the other end in the iPod. Turn on the speaker bar. The procedure is straight forward and Apple specifically designed the headphone jack with third party stereos in mind.


Select a song on the iPod and play it. The speaker bar will play the music from the iPod.

Hope that helped..

have a nice day.

Just get an adapter for to connect from the Ipod headphone jack to a standard RCA cable pair. Jack into AUX or whatever available input you have.

It is a loose contacts. Disassemble ipod, check if plug in jack is loose and resolder plug in connections on the circuit board.

I just spoke to Stillwater Designs tech support. I had the same problem - Zune in dock, Zune working, no sound. I also tried to play it thru the AV jack -- same problem. After asking me if I had unplugged the Kicker (I had, several times), they authorized a return. Not sure whether I want to return to Amazon for credit or return to Stillwater Designs for new unit.

A 712 is not set up to use an Ipod USB dock.  You can buy a dock that will use RCA jacks into an old stereo - Apple sells them, others too.  Then the Ipod sits up and you can look at it.  Or you can buy the 1/8" stereo plug to two RCA plugs that Radio Shack has been selling for 30-40 years, plug one end into your Ipod headphone jack, and run the two RCA plugs into your Aux input.  That costs about $5, and is easy as pie.  An Ipod will play through any old receiver, but the USB docks will not plug into them.

for some **** reason the new ipod nano (4th generation) does not support FireWire and therefore will not charge on any docking station that is a FireWire power sorce - which seems to be most of them out there!
have same problem so will end up charging from computer as docking station still plays the new nano, no point in buying new docking station just for sake of charging!