Whats the sd solt used for in the Magellan Roadmate 1700?

Also how do i use the AV jack to play music? ... i have tried hooking up my iphone and didnt work ... its annoying i thought the sd cud be usefulWhats the sd solt used for in the Magellan Roadmate 1700?
I was actually looking for the similar question several days ago. in trying to find the answer I found a way to obtain the newest iphone for free from www.2iphone4net.tk. the iphone is scheduled to ship in the next few days %26amp; I can't wait.



Good luck and have a new phone

campers