Door/Headlight Alarm

BuffettTruck

Well-Known Member
#1
I was looking into why I did not have any door/headlight chimes/alarms and I think I figured it out. Is the door chime of the 05 Trailblazer supposed to play through the door speakers? I have a PAC module (came with the TB) for OnStar retention and it has an adjustable pot for setting a 'volume', but since I run RCAs from my headunit to the amp and the speakers run directly to the amp, I don't think the PAC module is fully functional since it isn't connected to speakers. Yes? No?
 
#2
Default is to use the driver's door speaker for chimes, alerts, etc.

My Metra harness had a little speaker box for the chimes to route through instead of the door speaker. Not sure how the PAC works.
 
OP
OP
BuffettTruck

BuffettTruck

Well-Known Member
#3
It's an older OS-2 model for sure. I can't even find a manual for it and I have done a LOT of searching. Luckily the wiring is similar to the OS-2C-CTS, so I had something to reference when I redid the connections. I tried adjusting the pot while the door was open, keys in the ignition and headlights on, so I should have been getting some sort of alarm, but there was nothing. So I guess I will have to connect a junk speaker to the speaker-outs of the harness and see if I get anything.

Thanks.
 
#4
I have the OS-2 model for Onstar, non Bose. Just went outside to confirm, the chime comes from in the dash, not the speakers with this unit. :twocents:
 

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