the radio is part of the class2 data uart circuit.the circuit is basically a computer network in the h2. as long as the circuit is not opened all other features will still work.
the modules on the circuit have to communicate with one another or the system will shut down.
these modules are
ipc=instrument panel cluster
radio
hvac= head heating ac control head
pcm=powertrain control module
ddm=driver door module
pdm=passanger door module
dim=dash integration module
bcm=body comtrol module
dsm=drivers seat module
psm=passanger seat module
rim=rear integration module
sdm=airbag sensing and diagnostic module
abstcm=antilock brake traction control module
tccm=transfer case control module
might of left a few out.if you take it to a reputal installer they have the adapters to not disturb the factory setup.
__________________
.
|