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Alfa Romeo GT 3.2 V6 – RADIO – – BOSE System – WIRING DIAGRAM, LOCATION COMPONENTS, OPERATIONAL DESCRIPTION – WIRING DIAGRAM, LOCATION COMPONENTS, OPERATIONAL DESCRIPTION

Alfa Romeo GT 3.2 V6   – RADIO –  – BOSE System – WIRING DIAGRAM, LOCATION COMPONENTS, OPERATIONAL DESCRIPTION – WIRING DIAGRAM, LOCATION COMPONENTS, OPERATIONAL DESCRIPTION

Wiring diagram - RADIO - Alfa Romeo GT 3.2 V6







Components - RADIO - Alfa Romeo GT 3.2 V6



Component codeDescriptionReference to the assembly
B1JUNCTION UNIT-
B1JUNCTION UNIT
B2JUNCTION UNIT UNDER DASHBOARD
B5MAXI FUSE-1 BOX-
B98SUPPLEMENTARY FUSE BOX ( REAR )-
B99MAXIFUSE BOX ON BATTERY
C15FACIA EARTH, DRIVER''S SIDE-
C65HI-FI SYSTEM EARTH-
D20REAR DASHBOARD COUPLING ( REAR )-
D30REAR COUPLING FOR /FRONT DOOR. DRIVER''S SIDE-
D31RIGHT FRONT DOOR REAR COUPLING/.-
D41REAR DASHBOARD COUPLING FOR SPEAKERS ( FACIA )-
D47CLOCK SPRING ON STEERING WHEEL
D68HI SYSTEM JUNCTION-
D68Centre console/rear coupling-
D68Centre console / rear coupling-
D97SHORT CIRCUITING COUPLING-
H1IGNITION SWITCH
M1BODY COMPUTER
P2INTERIOR MICROPHONE CAPSULE-
P20RADIO
P20RADIO
P25AERIAL AMPLIFIER FEEDER ( REAR )
P30LEFT REAR SPEAKER ( REAR )
P31RIGHT REAR SPEAKER ( REAR )
P35SPEAKER IN DRIVER''S FRONT DOOR
P36SPEAKER IN FRONT PASSENGER DOOR ( FRONT PASSENGER DOOR )
P45DRIVER''S FRONT TWEETER SPEAKER
P46FRONT PASSENGER SIDE TWEETER SPEAKER ( FRONT PASSENGER DOOR )
P47REAR LEFT TWEETER SPEAKER
P48REAR RIGHT TWEETER SPEAKER
P49REAR SUBWOOFER SPEAKER ( CONNECTORS )5580T
P70BOSE RADIO AMPLIFIER ( CONNECTORS )5580T
P75CD MULTI-PLAYER ( CD MULTI )

Component location - RADIO - Alfa Romeo GT 3.2 V6





Components - RADIO - Alfa Romeo GT 3.2 V6



Component codeDescriptionReference to the assembly
B1JUNCTION UNIT-
B1JUNCTION UNIT
B2JUNCTION UNIT UNDER DASHBOARD
B5MAXI FUSE-1 BOX-
B98SUPPLEMENTARY FUSE BOX ( REAR )-
B99MAXIFUSE BOX ON BATTERY
C15FACIA EARTH, DRIVER''S SIDE-
C65HI-FI SYSTEM EARTH-
D20REAR DASHBOARD COUPLING ( REAR )-
D30REAR COUPLING FOR /FRONT DOOR. DRIVER''S SIDE-
D31RIGHT FRONT DOOR REAR COUPLING/.-
D41REAR DASHBOARD COUPLING FOR SPEAKERS ( FACIA )-
D47CLOCK SPRING ON STEERING WHEEL
D68HI SYSTEM JUNCTION-
D68Centre console/rear coupling-
D68Centre console / rear coupling-
D97SHORT CIRCUITING COUPLING-
H1IGNITION SWITCH
M1BODY COMPUTER
P2INTERIOR MICROPHONE CAPSULE-
P20RADIO
P20RADIO
P25AERIAL AMPLIFIER FEEDER ( REAR )
P30LEFT REAR SPEAKER ( REAR )
P31RIGHT REAR SPEAKER ( REAR )
P35SPEAKER IN DRIVER''S FRONT DOOR
P36SPEAKER IN FRONT PASSENGER DOOR ( FRONT PASSENGER DOOR )
P45DRIVER''S FRONT TWEETER SPEAKER
P46FRONT PASSENGER SIDE TWEETER SPEAKER ( FRONT PASSENGER DOOR )
P47REAR LEFT TWEETER SPEAKER
P48REAR RIGHT TWEETER SPEAKER
P49REAR SUBWOOFER SPEAKER ( CONNECTORS )5580T
P70BOSE RADIO AMPLIFIER ( CONNECTORS )5580T
P75CD MULTI-PLAYER ( CD MULTI )

Description - RADIO - Alfa Romeo GT 3.2 V6


A sophisticated Bose HIFI system with special HIFI speakers and an outside amplifier is available on request.The system has been developed ad hoc for the vehicle: the acoustic properties of the passenger compartment have been carefully studied so that the amplifier and the speakers are ideally suited to the vehicle: optimum listening is available in any part of the passenger compartment.Unlike the system fitted as standard, the Bose system includes:specific speakers and tweeters in the front doors - specific rear speakers and tweetersrear subwoofer speaker, located in the luggage compartment on the left - BOSE amplifier located in the luggage compartment on the left.The Bose system is completed by a microphone, located in the centre console, which detects background noise in the passenger compartment: the signal is sent for amplification allowing the optimum adjustment and equalizing of the output levels.The other components are the same as for the radio system:radio (different versions available)radio supply leadscables connecting the radio with the speakers;cable connected to a CD player;aerial with support mounted at the rear of the roof, coaxial cable and supply lead for aerial amplifier.For everything about the "basic" system,.For more details.

Functional description - RADIO - Alfa Romeo GT 3.2 V6


The radio P20receives a direct power supply (7 of connector A) from the battery via the line for fuse F39 of the junction unit under the dashboard B2and maxifuse CPL of B99( of B5for the 3.2 V6 version).Another specific power supply reaches pin 2 of connector A, to signal the presence of the Bose HIFI system.The power supply reaches pin 4 of connector A with the side lights on.The CAN line arrives at pins 1 and 3 of connector A with which the radio P20is connected to the Body Computer M1and to the other system nodes.Pin 8 of connector A is earthed.The aerial P25 receives a power supply from pin 5 of connector A . The aerial is connected to the radio by means of the special coaxial cable.The cables with signals for the speakers leave from connector B; these signals are sent to the BOSE amplifier P70 which controls the actual speakers.pins 5 and 6 of P20 and pins 31 and 32 of P70 to the left front speakers P35 and P45,pins 3 and 4 of P20 and pins 26 and 27 of P70 to the right front speakers P36 and P46,pins 7 and 8 of P20 and pins 4 and 16 of P70 to the left rear speakers P30 and P47,pins 1 and 2 of P20 and pins 5 and 17 of P70 to the right rear speakers P31 and P48,The connecting cable leaves connector C of P20 (pins 13-20) for the CD player P75 in accordance with the following connections: - Pin 13 asci bus from CDC to the radio - Pin 14 asci bus from the radio to the CDC - Pin 15 +12 permanent - Pin 16 +12V switched - Pin 17 digital earth - Pin 18 audio earth - Pin 19 left audio CDC - Pin 20 right audio CDC.Pins 10 and 11 of connector C are connected to the radio controls on the steering wheel: the connection takes place via the clock spring D47; the device which controls the control buttons receives an ignition-operated supply (INT) from the line protected by fuse F51 of the junction unit under the dashboard B2, whilst the reference earth arrives from pin 12 of connector C of P20.The amplifier P70receives a direct supply from the battery - at pin 1 - via the line for fuse F2 of B1 and the specific fuse F61 in the additional fuse box B98.Pin 6 is then connected with a special line to the radio P20pin 6 of connector C which sends the on signal for the actual amplifier.Pin 2 of P70is earthed.The other signals leaving the BOSE amplifier P70control the "basic" system speakers as described previously. In addition, signals leave pins 3-15 and 11-12 which control the rear subwoofer P49.At pins 29 and 30 of P70the signals from the ambient microphone P02 arrive

Engine compartment junction unit



B1A



B1A



B1A



B1B



B1B



B1B



B1C



B1C



B1C



B1D



B1E



B1E



B1X



B1X



Junction unit under dashboard



B2A



B2A



B2A



B2A



B2A



B2A



B2B



B2B



B2C



B2C



B2D



B2E



B2F



B2G



B2H



MAXI FUSE box



B5A



B5B



B5C



B5D



B5E



B5F



Supplementary fuse box



B98



Maxifuse box on battery



B99A



B99A



B99B



B99D



Facia earth, driver's side



C15A



C15B



C15C



Bose system earth



C65



Rear dashboard coupling



D20



D20



D20



D20



Rear coupling for front door driver's side



D30



D30



D30



Front passenger door rear coupling



D31



D31



D31



Rear dashboard coupling for speakers



D41



D41



Clock spring coupling



D47



D47



Bose system coupling



D68A



D68A



D68B



D68B



D68C



D68C



D68D



D68D



Short circuiting coupling



D97A



D97A



D97A



D97C



D97D



D97E



D97G



D97H



D97I



D97M



Ignition switch



H1A



H1A



H1B



Body computer



M1A



M1A



M1A



M1A



M1A



M1A



M1B



M1C



M1D



M1E



M1F



M1G



Interior microphone capsule



P2



Radio



P20A



P20A



P20B



P20B



P20B



P20B



P20C



P20C



P20C



P20C



P20D



P20C



Aerial amplifier feeder



P25



Left rear speaker



P30



P30



Right rear speaker



P31



P31



Speaker in driver's front door



P35



Speaker in front passenger door



P36



Driver's front tweeter speaker



P45



Front passenger side tweeter speaker



P46



Rear left tweeter speaker



P47



Rear right tweeter speaker



P48



Rear subwoofer speaker



P49



Bose radio amplifier



P70



CD multi-player



P75


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