Be specific: A nicely details question get useful & relevant answers.
Make it relevant to others: Use tags to make sure your question is relevant to more people than just you, and more of us will be interested in your question and willing to look into it.
How to use tags? Make sure you tag the product(s) about which you are asking the question. Tage specific feartures that are causing the issue.
navigation and pendrive realted issue
HELLO I AM USING THE PIONEER MODEL AVH-X2890BT . THIS PRODUCT WAS NOT SUPPORT ANY PENDRIVE AND I HAVE ONE PROBLEM FOR THIS SET ITS A NAVIGATION WAS NOT WORKING PROPERLY . AND GIVE A SOLLUTAION OF THIS PIONEER SET .