I agree that the GOP should reach out to Blacks, but not urban Blacks. They should reash out to suburban Blacks and can incorporate this in their regular campaign messaging simply by inserting some reasons why Blacks should support the GOP.
"urban radio" is a format, not a location. A lot of young white people listen to it also. Many Blacks vote based on style over substance. Bush lost a huge opportunity to appeal to them over the last four years. He should have had a constant stream of Black entertainers and sports stars to the White House for photo ops, concerts and discussions on issues like preventing AIDS where there is no disagreement.
Instead he hunkered down and ignored them. Now it's too late.