Originally Posted by bradtopp
Anyone using this with their iPhone 3GS? Installed mine last weekend and tested it out for about a minute and thought all was good. Went for a good 5 hour ride today. I have my iPhone in a RAM mount and only use it for some tunes. Stopped in the middle of nowhere on a fire road to plug in my charger cable because it was getting low on juice. Went on my merry way for about 20 seconds and it popped up and said "Device not compatible with your iPhone" and it stopped charging!
Anyone else tried using this with their iPhone 3GS? If you have an original iPhone or an iPhone 3G, the charging requirements are different so no need to chime in if you have one of those models.
I'll do a test tomorrow with my friend's iPhone 3GS.
I will also call the manufacturer to see what they have to say.
I found some info which may explain the problem...
I would suggest trying another iphone cable for diagnosing purposes.
If that doesn't work, you can return the charger and I'll refund you fully including the shipping both ways.