I know I should probably post this under Farkles, Gadgets, and Gear but thought I might get more exposure doing it here. Anyway, here's my question. Have any of you electronic gurus out there successfully interfaced a GARMIN SPIII with the latest Voice Com System on an '05LT? I called Chicago BMW to order a complete system for my new to me '05 and the parts guy that I talked to told me that the only way to interface an SPIII with the VOICE System is to plug it into the AUX audio input. After plugging it into that input he tells me that the other audio functions will be disabled as long as the GARMIN is plugged in. Anyone out there know if that's the case, or better yet, is there a work a round? Don't mind spending the $ for the COM System but don't want to spring for a new GPS.