I have a used Alpine KCA-420I - IPod Interface Adapter for sale.
Looking for $75 shipped with in U.S or Best offer

 

Where did you mount this thing? Looks pretty big.

Also how does it work exactly? Do you splice it into the antenna?

 

I assume this model will work only with an Alpine head unit.

 

Its 4in x5in x 1in in size, you can hide it anywhere, behind the glove box, under the seat etc.

You'll need an Alpine headunit (Cd player, pop up screen, etc to control this ipod interface unit. It also charges the ipod when your car is on as well.)

 

Sold!