06 crew cab bose onstar

It is strange that you lost the onstar audio since to state you retained the factory deck and amp. I am hoping nothing in the system was damaged. I can only suggest to check if any wires are cut or tapped into at the deck causing this problem.

You vehicles factory deck uses RAP (retained accessory power) which has no acc voltage at the deck. It is a class2 data system so if you tapped into anything other then speaker wires, constant or ground it could cause problems so double check that first. Otherwise there may be permenent damage, just have to keep your fingers crossed on this one.

For a remote wire there are a few options. One is to find the RAP relay or fuse. Use a meter to find a wire with 12v that stays on once the key is turned off and goes to zero when the door is open. This can be a pain and time consuming but it's there somewhere. Perhaps if someone knows the specific location of the wire they will post it. Going to any other acc fuse of brown wire at the ign. harness will result in the amps turning off as soon as the key is turned off.

Option two is to buy a "remote power adaptor". DEI sells one for around 11 bucks. It uses the audio signal from a speaker wire to turn on the amp as soon as the deck is on..and wil leave it on until the deck loses power. A cheap,simple solution if you can't find the right wire.

Good Luck

2006 chevy silverado crew cab 1500

Retaing factory look and adding aftermarket speaker and amps.  Amp bypass done using high to low pac converter...  Speaker wires cut after Bose amp direct connection from aftermarket amp to speakers using factory wiring   High to low used at same location (output) of amp... I didnt test onstar unit because i was using a periferal mod, the rca outpus on mod were very low and the amps didnt put out much sound, so then i went to high to low conv.  

When the onstar is pressed the radio is cut off but no sound, onstar can hear customer but customer cannot hear them

plan to try another Periferal mod......

If I understand what you posted correctly you did not actually bypass the factory amp, you attached the converter to the outputs. If this is the case all audio should be coming from it...including onstar..the type or brand of converter you use should not be able to tell if its the onstar voice or any other audio source.

So I still think you need to check into this more or be more specific with what you actually did. And/or as asked earlier to make sure that the onstar worked before you "tampered" with the system or if it is not anything you did that is causing this issue and is just a defective onstar unit.

Good Luck.

Your on the same track as i am, i've never had any problems with this before, but its my 1st 06, they didnt seem to change anything.  I tend to think something is wrong from the factory because the customer stated just last night that his Temp and Compass on the rear view mirrow are not working eaither, and they were working fine when i delivered the car.   I wonder if there's something wrong with that whole unit.....