All,
Intalled my z120 yesterday with MSN, HD radio tuner and xm920 module. All was working fine, XM and HD Radio. Today randomly the XM went out. I pulled the XM module out and disconnected it. HD radio comes back. I swapped the 920 module with my old 10xmt module, same issue, HD Radio disappears. Unplug it HD radio comes back. Here's the odd part, if I just plug in the IPBUS cable to the xm module, HD radio stays on screen, as soon as I attach power to the xm module (either 920 or 10xmt) the HD Radio and XMRadio icons disappear.
In none of the scenarios does XM show up anymore. Do I have a defective head unit? I read another thread about an IPBus issue when more than 2 modules are connected, the z120bt has a bug where it drops connections. Not sure if thats true or not.
Anyway, before I tear the unit out to troubleshoot I was curious if this is a known issue or if anyone has run into this? I just don't want to reinvent the wheel while troubleshooting this. Any help would be appreciated.