1. Locate the parking brake wire. It is usually a thin, black wire with a white stripe.
2. Cut the parking brake wire.
3. Connect the cut end of the parking brake wire to the ground wire. The ground wire is usually a black wire.
4. Test the car stereo to make sure it works.
Bypassing the parking brake wire will allow you to use the car stereo without having to engage the parking brake. However, it is important to note that this may be illegal in some jurisdictions. Check with your local laws before bypassing the parking brake wire.