Metra Electronics 99-3309B - OnStar and Vehicle Customization; OnStar Level Adjustment; Additional 12-pin Harness (ASWC-1); Vehicle Customization with Optional LCD

99-3309B
The OEM radio is used to customize certain features of the vehicle.
UsetheoptionalLCDtoadjustthesefeaturesaccordingly:
1. PressESC,andthenpressENT:“SetLanguage”willappearonthescreen.
2. Tochangethelanguage,pressENT,andthenpressthearrowupanddown
buttonstochangethelanguage.
3. Onceyouhaveselectedyourlanguage,press ESC togobacktothe
mainscreen.
4. Ifyoudonotwishtochangethelanguage,youcanscrollupanddownthrough
thedifferentsettingswiththearrowupanddownbuttons.
Note: What these options are depends on the vehicle/trim-level it is
installed into.
5. Remembertopress ENTtochangethedesiredsetting.
Vehicle customization
with optional LCD
(AXXESSpart#XIA-LCDsoldseparately)
OnStar level adjustment
ToadjusttheOnStarvolumelevelfindtheBlack/Yellowwireonthe16-pin
harness.PushtheblueOnStarbutton,whilethevoiceisspeakingtapthe 
Black/Yellowwiretoground.Oncethevolumeissetitwillstayatthatvolume
untiltheBlack/Yellowwireistappedtogroundagain.Thiscanbesetduring
installationandthenleftalone.Ifuseradjustmentisdesired,thecustomermay
alsotap“VolumeUp”ordownonthesteeringwheel(ifequipped)toadjustthe
OnStarlevel.
Additional 12-pin harness (ASWC-1)
• This12-pinharnessistobeusedinconjunctionwiththeASWC-1
(notincluded).PleaserefertotheASWC-1instructionsforprogramming.