Non Bose(R) Radios Without Rear Audio Controls

These vehicles use wiring harness P/N 15164934.

1. Remove the key from the lock cylinder.

2. Remove the SIR fuse # 18 from the underhood electrical center.

3. Remove the retainers that secure the driver's seat assembly to the floor of the vehicle.

4. Disconnect the wires from the driver's seat and remove the driver's seat.

5. Disconnect the negative battery cable.

6. Remove the left rear seat cushion and the back rest assemblies.

7. Remove the jack handle tool support assembly.

8. Loosen the rear electrical center from the floor of the vehicle.

9. Separate the rear electrical center from its mounting bracket.

10. Remove the left side front and rear door opening carpet retainers and the left side first lock pillar trim.

11. Remove the six retaining screws from the console compartment bin and remove the bin.

12. Remove the shift lever handle and boot assembly.

13. Remove the screws that retain the console to floor of the vehicle.

14. Set the parking brake as firmly as possible, depress the Auto Trans Shift Lock Control solenoid plunger and shift the transmission shift lever to the L1 position.

15. Lift the console, disconnect the wiring and remove the console from the vehicle.

16. Remove the left side closeout/insulator panel (TrailBlazer only).

17. Remove the left side knee bolster (TrailBlazer only).

18. Remove the screws retaining the IP bezel to the IP, and remove the bezel (TrailBlazer only).

19. Remove the screws retaining the carpet panel to the lower IP center control panel pedestal (except TrailBlazer).

20. Remove the screws that retain the IP center trim panel to the IP, loosen the trim panel, disconnect the wiring and remove the trim panel from the vehicle (except TrailBlazer).

21. Remove the radio retaining screws, pull the radio forward and disconnect all connectors.

22. Unwrap/cut the white tape on the new speaker wiring harness to spread out the wiring harness.

23. The radio end of the harness has the foam anti-rattle wrap around it. Feed the radio end of the new harness from under the IP to the area of the radio.

24. Remove the CPA from the radio connector, remove the wires in the cavities listed below from the radio connector and replace them with the wires from the new wiring harness.

Important:
These wires are twisted pairs and they must be positioned properly in the connector, or audio system performance will be affected.

^ Remove wire in cavity A8 and insert the Tan wire.

^ Remove wire in cavity A9 and insert the Gray wire.

^ Remove wire in cavity A10 and insert the Light Blue wire.

^ Remove wire in cavity A11 and insert the Dark Blue wire.

^ Remove wire in cavity B8 and insert the Brown wire.

^ Remove wire in cavity B9 and insert the Yellow wire.

^ Remove wire in cavity B10 and insert the Dark Green wire.

^ Remove wire in Cavity B11 and insert the Light Green wire.

^ Reinstall the CPAs to the radio connector.

^ Cut the terminals and the wires of the original harness you removed from the connector.

25. Position the radio to the IP opening, reconnect the connectors and install the retainers.

26. Gently pull the carpet from under the right side of the shifter/console support, route the new wiring harness along and below the right side of the shifter/console support plate, place the new harness under the carpet and reposition the carpeting

27. While lifting the carpet in the rear door area, slide the rear electrical center through the cutout in the carpet. Continue lifting the carpet enough to gain access to the three in-line connectors located inboard of the rear electrical center.

28. Locate the 8-way connector with the purple CPA. Separate the connector. Remove the CPA from the female side of the connector.

29. Route the new harness under the carpet from the rear of the console to the 8-way connector.

30. Remove the eight wires from the 8-way in line harness connector and replace them with the wires from the new harness.

Important:
These wires are twisted pairs and they must be positioned properly in the connector, or audio system performance will be affected.

^ Insert the Gray wire into cavity A.

^ Insert the Tan wire into cavity B.

^ Insert the Dark Green wire into cavity C.

^ Insert the Light Green wire into cavity D.

^ Insert the Yellow wire into cavity E.

^ Insert the Brown wire into cavity F.

^ Insert the Light Blue wire into cavity G.

^ Insert the Dark Blue wire into cavity H.

31. Reinstall the CPA, reconnect the 8-way connector, and reattach it to its retaining clip.

32. Cut the wires and terminals from the wires you have removed from the 8-way connector as close to the taped portion of the original wiring harness as possible.

33. Reposition the rear electrical center through the carpet and reposition the carpet.

34. Reinstall the rear electrical center bracket and tighten.

Tighten

Tighten the rear electrical center retaining nuts to 10 N.m (89 lb in).

35. Reconnect the negative battery cable.

Tighten

Tighten the battery ground (negative) terminal bolt to 17 N.m (13 lb ft).

36. Insert the ignition key and turn to the RUN position Verify radio operation. If all is in working order, proceed to the next step. Otherwise, check your work.

37. Turn the key OFF. Remove the key.

38. Reinstall the rear seat backrest and seat cushion assemblies.

Tighten

Tighten all of the rear seat back rest and seat cushion retaining nuts to 45 N.m (33 lb ft).

39. Reinstall the jack handle base (tool carrier).

Tighten

Tighten the nuts to 7 N.m (62 lb in).

40. Reinstall the rear electrical center cover.

41. Reconnect the electrical connectors to the IP trim plate, position the IP trim plate, and install the retainers.

42. Reinstall the knee bolster (TrailBlazer).

43. Reinstall the left side closeout/insulator panel (TrailBlazer).

44. Reinstall the center IP carpet lower trim panel and install the screws (except TrailBlazer).

45. Reinstall the console to the vehicle and install the retainers.

46. Reinstall the shift boot and handle assembly.

47. Reinstall the console bin and retainers.

48. Reinstall the first lock pillar trim and carpet retainers to both door openin9s.

49. Position the drivers seat assembly in the vehicle. Connect the wiring and install the retainers.

Tighten

Tighten the retaining nuts to 45 N.m (33 lb ft).

50. Reinstall the SIR fuse # 18 in the underhood electrical center and close the hood.

51. Connect the Tech 2(R) and clear codes.