I had a small company install my stereo and he didn't have the install kit for the X. I went to Circuit City and bought just the kit. Theirs also includes the pocket to fill the space. They have different types, some that are just open, to toss anything in there and some that have the slots to store CD's.
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Blue
'01 XE/3pk Auto
Just Blue 4x4
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2001 XE-3pk Auto
Just Blue 4x4