Radio Replacement Interface with Onstar Retention for Class II General Motors Vehicles

Installation Instructions

If not updated, download and install the latest version of the PAC-UP firmware. It is VERY important that you use the latest version of Interface Updater. Not doing so may damage the interfaces software. 

Detailed Instructions

• If this is the first time, run and install "Interface Updater Setup". This will install "Interface Updater" onto the computer. The "Interface Updater" will update the files from the computer to RP Interface.
• Download the file
• Connect the PAC-UP to the computer using supplied USB cable. Connect the PAC-UP to the RP Interface.
• Open the Interface Updater Program by going to Start >All Programs >AAMP of America > Interface Updater.
• Click "Connect" button to establish connection between the PAC-UP and the computer. The "Connected" check box will be checked if successful. If unsuccessful, reconnect PAC-UP to the computer and restart the software.
• Select your RP Interface from the "Interface select" pull down menu.
• Click "Update firmware". The new firmware can be found where you saved it before beginning.
• Once the files are chosen the update will begin. When successful it will show the text "End Update".

IMPORTANT: It is very important that the second and third digit of the revision number on your module matches the second and third digit of the new firmware file revision number. If your numbers do not match, please contact our tech support department.