So I installed my Z1 yesterday, and it works wonderfully.
Went to install my GEX-P10XMT plus Ipod interface today and am having some weird issues.
All connections are correct, data cable XM to Z1, IP bus XM (black) to Z1 (blue) and XM (blue) to ipod (black), constant power is good (checked with multimeter), ground is good, didnt connect ACC power lead.
The Z1 displays no connection/no signal/no radio ID for the XM unit.
When my ipod is attached everything shows up on the Z1 and I can select and play a playlist BUT no sound!
Tried resetting the XM unit multiple times.
The XM button