In-dash iPod Touch in Jeep SRT8
I just finished installing an iPod Touch in the dash of my 2006 Jeep SRT8.
Check out the video on YouTube.
Everything works great except one thing - maybe you guys can help:
I have an Apple Composite AV Cable to send the AV to the overhead DVD player. The USB cable from the iPod goes to a USB hub. The main jack on the USB hub goes to a panel mount USB jack. I use this to sync my MacBook Pro. The syncing part works great.
The problem I am having is charging the iPod. Sometimes it does and sometimes it doesn't. First, I powered the hub with a USB cable from a hidden 12v USB adapter (iPod Charger) that is connected to a rocker switch. The idea was to turn the hub power on when I want it to charge and off when I don't. During testing, it worked perfect. But then sometimes when the rocker was on, the iPod did not recognize the power. I figured it had to do with not actually running 5 volts into the power jack on the hub (just a USB port. So I made a 12v to 5v power adapter from an old cell phone charger. Now the hub is theoretically powered as if it was plugged into the wall. I can still control the hub power on and off with a rocker switch. I am getting the same result - sporadic charging. I did notice once, when the battery runs down so far that it turns off, it then recognizes the charging circuit - why is this? Weird. If I omit the hub and run the USB cable straight to the 12v iPod charger, then I give up the easy syncing function.
Thanks for any help on the charging.
not enough current
If you a powering your USB hub from a old cell phone charger, I am 90% sure your problem has to do with insufficient current. Does the adapter have output specs on it? I know you said 5V but A or Ma rating? On the hub it will also have a rating of current in A or Ma. If you do not have enough current, odd things will happen as your seeing. I can help you design a 5V 1A or greater supply if you need. But check that first, I'm sure that is your problem.
Thanks for the advise. I thought that was it. So, I purchased a new "ipod car charger", changed the dock plug to my male plug for the hub and the same thing happened. I figured the hub was using too much power.
Easy fix - eliminate the hub. Syncing is a little more tedious now, but I don't do it that often anyway.