Q: How do you disconnect and reinstall the radio, speakers, amplifier, satellite radio tuner, steering wheel audio controls, Bluetooth unit, microphone, and integrated display on Nissan Sentra?A: To dem GUI the radio, you'll follow the removal of cable on the negative terminal of the battery, to the center instrument panel trim assembly and dem GUI the electrical connectors for the radio. Subsequently, it is necessary to unscrew the radio on both sides using the screws put for this aim. For installation reverse the above mentioned process and connect the battery re-do some relearn if necessary. When it comes to dash mounted tweeters, the process will entail the following steps: disconnect the battery, thereafter, remove the speaker grille, unscrew the tweeter mount, disconnect the electrical terminal and finally, taking out of the speaker. Restoration on the other hand occurs in the opposite sequence in the same order to the manner in which the modules were installed. The procedure followed for door speakers include: door trim panels to be removed, followed with the removal of the door speaker mounting screws, the electrical connector to be disconnected, and the door speaker to be pulled out, the process of which is opposed during reinstallation. To replace rear speakers, one has to detach the rear seat backs and the rear parcel shelf, to unlock and take out the screws which hold the speaker, to disconnect the electrical connectors and finally to pull out the speakers; installation is just the opposite process. To replace the amplifier, move the front passenger seat back to take out the rear bolts of the amplifier, then moving the seat to the front to take out the front bolts of the amplifier, disconnect the electrical connectors and then take out the amplifier, to install it reverse the above steps. For the satellite radio tuner, the trunk left side trim panel has to be released by removing the two bolts, disconnecting the electricity connectors and finally taking out the tuner paying attention to the position of the bracket if it is to be removed together with the tuner and the installation involves reversal of the above procedure. For steering wheel audio controls, first, take out the airbag, then unscrew the audio control mounting screws, disconnect the electrical connectors and take out the controls and screwed them back in with the connectors and replace the airbag. A Bluetooth telephone system enables the connection with a cellular phone for the purposes of making and receiving calls without the use of hands as well as memo recording and deletion: it is necessary to pair this telephone with the controller if not the identical phone is employed. It is self-diagnostic and also a technician can diagnose the system using the audio controls. The "ON" LED light in the roof console blinks, during the power ON and stays ON when the connected/wired phone is available. To drop the Bluetooth unit, the following procedures had to be followed: slide the driver's seat forward to unscrew the mounting bolts, slide the seat backward to remove the remaining screws, disconnect the electrical connector and then pull out the unit; to install it call for reversal of the above procedures. For the microphone, there is the map light in the overhead console, disconnected microphone electrical connector, and finally, the removal of the microphone with reinstallation being the opposite procedure. The combined circuit located above the radio can only be accessed if the radio is taken off. Further, the retaining screws to be remove, then the display has to be slid out, electrical connectors are to be disconnected, and finally, it has to be taken out and put back in a similar manner.