E46Fanatics - View Single Post - Complete BMW Business CD53 Radio Upgrade to Sirius, MP3 CD, Aux & iPod Pictorial DIY
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Old 01-31-2010, 09:53 PM   #5
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PART FOUR: Updating the Antenna Amplifier

In order to get AM and FM reception you will have to also replace the old 12v powered Antenna Amplifier on your 1998 to 9/2001 E46 with the newer self powered Antenna Amplifier. This MUST be done because the newer Alpine BMW Business CD53 units do not have the capacity to power the old Amplifier Antenna (only the previous Blaupunkt BMW Business CD53 units have the power lead output for the old style Antenna Amplifier). Without this upgrade you will not have very little, if any, AM/FM reception.

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