1999 BMW 318ti Car Stereo Wiring Diagram
Car Radio Battery Constant 12v+ Wire: Red/White
Car Radio Accessory Switched 12v+ Wire: Purple/White
Car Radio Ground Wire: Brown
Car Radio Illumination Wire: N/A
Car Stereo Dimmer Wire: N/A
Car Stereo Antenna Trigger Wire: White
Car Stereo Amp Trigger Wire: N/A
Car Stereo Amplifier Location: N/A
Car Audio Front Speakers Size: 5 1/4″ Speakers
Car Audio Front Speakers Location: Kick Panels
Front Left Speaker Positive Wire (+): Yellow/Red
Front Left Speaker Negative Wire (-): Brown/Orange
Front Right Speaker Positive Wire (+): Black/Red
Front Right Speaker Negative Wire (-): Brown/Orange
Car Audio Rear Speakers Size: 4″ Speakers
Car Audio Rear Speakers Location: Rear Deck
Rear Left Speaker Positive Wire (+): Yellow/Black
Rear Left Speaker Negative Wire (-): Black/Orange
Rear Right Speaker Positive Wire (+): Blue/Black
Rear Right Speaker Negative Wire (-): Brown/Orange