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FM amplifier/booster

justk2020

Trainee
Joined
6 Dec 2020
Messages
89
Hi,

I have a 2004 Turbo (most/bose).

The fm reception has always been bad.

I am replacing the head unit and the fm is non existing (using a fakra to din adapter).

I read about the radio amplifier and it seems the white wire going into A5 in the factory harness is relevant. Though i am a bit confused about how it powers the amp.

Unlike all the other sockets in the A plug (which deliver power TO the head unit)...does this one take power out to the amp? If so, what typically supplies the power. I am guessing that it should be supplied from any present ignition on 12v? Right?

Also, i am replace the fakra adapter with a new one with a built in a amp...is there any issue with having two amps?

P.s. i know i may find that the factory fm amp is dead...as i had a bad signal before and these apparently have issues.

Many help in advance.

Regards

Karl
 
I connected the white wire that goes to the aerial amp to the switched 12v going into the back of the head unit. I now get 12v at the amp end. It seems to make no difference to the signal, I wonder if my aerial amp is borked too.
 

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