Does anyone know where I may be able to purchase a Alpine CDA-7875 new for a lot less than retail. I am talking less than $300. I appreciate any response. If someone could also explain what parts I would need to get the dash controls working that would be great. Sorry if this has already been covered.

 

Get the PacSwi-3 interface. Drill a small hole in the middle of the plastic frame around the unit for the remote eye.