Here's what the guys on the Avalanche list say are the latest part numbers:
<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">TNR Head units:
Lux:10377531 - Updated#:15230099
Premium & Non-Bose: 10377287 - Updated #:10351123
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Other items (XM, Changers, misc...)
XM Retrofit Kit: P/N: 12498768
AUX harness #15312903 $25
AUX CD changer #15055250 $180
</div></BLOCKQUOTE>
I have a 2003, and my TNR is part number 10377531.
BTW - If you have one of those v4.1 DVDs laying around I'd sure like to test it for compatibility!
