looking for radio option to add Pandora, blutooth and Ipod connectivety to replace

[sbmrinaldi]

Bose head unit. I only want to change if I can get what I want and still get the wheel controls to work. I ran across this on ebay, https://www.ebay.com (commissions earned), which seems like to much of a gamble and the price is a bit high.

Has anyone found a good unit compatible with the Bose unit that will give you the above? I want to stay around the $500 range if possible.