GM Service Manual Online
For 1990-2009 cars only

Twisted/shielded cable is used in order to protect wiring from electrical noise. Two-conductor cable of this construction is used between the radio and the Delco-Bose® speaker/amplifier units and other applications where low level, sensitive signals must be carried. Follow the instructions below in order to repair the twisted/shielded cable.


    Object Number: 8798  Size: SH
  1. Remove the outer jacket. Use care not to cut into the drain wire of the mylar tape.
  2. Unwrap the tape. Do not remove the tape. You will use the tape to rewrap the twisted conductors after you have made the splice.

  3. Object Number: 8799  Size: SH
  4. Prepare the splice. Untwist the connectors and follow the splicing instructions for copper wire.

  5. Object Number: 8800  Size: SH
  6. Re-assemble the cable.
  7. • Rewrap the conductors with the mylar tape.
    • Use caution not to wrap the drain wire in the tape.
    • Follow the splicing instructions for copper wire and splice the drain wire.
    • Wrap the drain wire around the conductors and tape with mylar tape.

    Object Number: 8801  Size: SH
  8. Tape over the entire cable. Use a winding motion when you apply the tape.