Just in case anyone here has an Alpine with a problem pairing it with your cell. I has problem for the last 4 or 5 days with my cell not pairing to my 149BT. I took that oportunity to convince myself I need to upgrade my cell. I did and still had problem. I looked for a firmware update for the head unit and found one but the version on my head unit was the same so I thought it was something else. After 3 lbs of popcorn I came across another firmware upgrade, 510, put that on a stick and upgraded the head unit. Cell pairs with the head unit so all is good...