I have found 3 great guides on how to mod your XBOX without using a modchip. They all work well, so it's up to you what one you use.

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<b>Complete guides on how to SoftMod your XBOX</b><br><br>
<a href="http://turdinc.kicks-ass.net/Msntv/ps2/xbhack.html">Guide 1</a> (This is the one I personally used, older version's only)<br><br>
<a href="http://turdinc.kicks-ass.net/Msntv/ps2/Xguide2.html">Guide 2</a> (compatable with all version's of the XBOX v1.0 - 1.6)<br><br>
<a href="http://turdinc.kicks-ass.net/Msntv/ps2/Xguide3.html">Guide 3</a> (compatable with all version's of the XBOX v1.0 - 1.6)<br><br>

Note: These are older guides so there may be newer methods available today but they work and work well!