Help, I apologize if this has been asked previously. I just purchased a 2007 Silverado W/T for my son which already had a JVC aftermarket radio installed. Works fine but the onstar, seatbelt & turn signal chimes and accessory power without engine running does not work. Is there a fix to this to restore to factory type settings? I have heard the term intergration module but not sure if that is correct or what type would need. I appreciate any help!

 

You need the $150 module. I know you can get it at best buy. The issue will be if when the JVC was installed, if the factory wires were cut. The module is used so you don't cut the factory harness, and to be able to keep onstar and the chimes. I installed my Pioneer myself in my 07 W/T, that module is a neccessity.

 

Is the module needed with any after-market stereo upgrade..??..

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