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Originally Posted by bmwmedic
I have seen reference to two tv modules? any informative tv links? I don't really feel the need to watch tv or movies but I would like to know the minimum to support BU cam.
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The OEM TV module gives you TV & AV-IN & AV-OUT & BU-Cam.
Without a TV module you have to add other non-OEM devices to achieve a backup cam function
SO it boils down to an aux input. and I have seen the reference to using the cassette inputs OR a later radio BM53 ver?? that has the aux socket.but with nav one cannot JUST change the radio can one?
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Originally Posted by bmwmedic
Yes, you can change just the radio tuner. It's in the boot beside the CD changer on the E39.
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Originally Posted by bmwmedic
And use existing mkIII etc? PnP to my sys?
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New.Gen radio was designed after the Mk3 finished production. So only the Mk4 nav fully supports all functions and features of the New Gen radio.
If you use it with Mk3, you may not get all functionality.
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Originally Posted by bmwmedic
Oh now I remember. I have seen ads for widescreen upgrades, folks say i"ts PnP for your 4;3," but I have a cassette behind mine not cd.IS THE player (cass or cd) SEPARATE FROM THE SCREEN ITSELF?
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The on-board monitor (screen+keyboard+Tape/CD) is plug and play from 4:3-tape to 16:9-CD or 16:9-Tape
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Originally Posted by bmwmedic
Someone was selling one with cd, could I PnP that to gain cd then use my cd harness to gain access to my system??
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Yes, On-Board Monitor is plug and play.
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Originally Posted by bmwmedic
And does that mean mine is not valuable seconedhand cause it has cassette attached??
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No. Value will vary country by country.
Some people need 4:3 screens for repairing broken ones. Some people want 16:9 and don't care if it has tape.
> 1 minimum modules to support BU cam
TV module + backup cam itself
> 2 simplest aux socket
New Gen Radio with Aux-In function
> 3 some source of info on the big picture of the system, like the inbred connection between radio and nav, and the screen / HU .
The BMW system already does all of this. Your question here is unclear.