Greetings,
For the 2007-2009 Nissan Altima; both coupe and sedan, Scosche offers the NN1642B aftermarket stereo installation dash kit. The NN1642B is compatible with both Single or Double DIN sized aftermarket stereos. The NN1642B includes two different A/C trim bezels in order to accommodate the various types of A/C control panels found in the Nissan Altima.
Below is a link to the NN1642B web page;
http://scosche.com/products/productID/1541
Please feel free to forward any further concerns.
Best regards,