The mach system in your 99 is different than the mach system in the 01. Yours has 3 amps and the newer version only has 2, so that right there would probably be enough of an issue to look elsewhere for your needs. Also, with the amount of work required to install the newer, bigger radio into your dash it would also be more work/$ than it's worth. I've done it with aftermarket double dins, but trying to get a factory one in would be harder, as there would be nothing to mount it to once you cut out the subdash to fit the radio in.