Since I had the GMOS-Lan-04 installed to interface my Pioneer AVIC940BT I have heard what seems to be engine noise during acceleration ,if I stop it goes away.Also it seems to be a bit more static like I am loosing signal.It did not exhibit any of this before when Worst Buy installed their interface but I lost Onstar so I had the GM Lan installed to regain it.Any ideas here.I am not able to pair my phone either,my Casio phone pairs fine with my 10 Avalanche.