I just receive my gex-p10xmt and getting ready to install it to my N2 and have a question. I've search and found a similar topic but still doesn't answer my question.Can someone confirm if I have to hook up the power wires to the xm unit? Because on Crutchfield it states:" Power Wiring: If the unit is connected with an IP-Bus cable, it is not necessary to connect the red (+12 volts switched) power lead. The receiver may not work properly if the IP-Bus cable and the red power lead are used together. The Installation Manual incorrectly states that both leads should be connected."

You still have to hook up the yellow power and the ground

Thanks! Just got done installing now