This power cable is optional for BMW E46/39/53. If your car has the original car external amplifier system (such as Harman Kardon, Bose, JBL, etc.), you need to buy this 5.5M extension power cable for installation
Easy to install, you need to take one end of the extension cable to connect to our stereo, and then the other end will connect to the sound system in your car's rear
Radio Antenna Extension Cable Length: 5.5M
Package Content: 1 x Radio Antenna Extension Cable
If you don't understand anything during installation or operation, please feel free to contact us, and we will give you a reply within 24 Hours