Check out what CarDomain.com user, JPPadula, has done to his 2002 GMC Denali...

He figured out a new way to use your old cassette adapter. He also created a nifty iPod cradle unit by modding an OEM cassette player to accept an iPod.

The iPod slides in like a cassette, ejects with the factory button, and a custom-made Apple button controls PAC SWIX to select the source on Kenwood deck using iPod interface.

It all fits into OEM cassette player case, mounts like factory with all backlighting retained.

He used steel stock lined with suede to make a chassis, cassette mechanism gear assembly for motorization, and many hand fabricated slides and levers.

Go check it out his cool ride here.