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What is this thing? (04 Impala)

Impala131

New member
This was behind the front dash panel for my 04 Impala, attached to the panel with some type of adhesive. What is it?

I'm guessing some kind of damage / mercury / anti-theft sensor.


IMG_1046_zps2ea58849.jpg
 


Okay, peeled off the double-sided tape, no identifying numbers. Opened up the plastic case, and under it... another case, wrapped in rubber. No part numbers etc on any of it.... so I opened the other case. Still, no identifying numbers, but you can see what appears to be a heatsink on one side and a single solder dot on the other... sure does look like a receiver of some kind. But what for? It appears that attempting to remove the heatsink could possibly damage the device.
IMG_1052_zps0a34fd3a.jpg
IMG_1050_zpscdc44326.jpg
IMG_1049_zps8f59a14d.jpg
 


I traced the wire back to the ignition switch area where it seems to join other wires... it doesn't look like it actually goes to the ignition switch though.
 
I had one of those on my old honda civic, the previous owner said it was for talking on the phone back then when they didnt have bluetooth.
 


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