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Discussion Starter #1
Hi all,

my workmate has recently bought a used 159 (at my recommendation!) and is loving it! It's a 1.9JTDm Lusso saloon.

However, he is a sound man like me and is having a few problems with the stereo!

It's a 939-type radio (according to his paperwork) without Blue&Me. The speakers all round are unbranded, apart from the big one (subwoofer?) on the rear parcel shelf which is branded 'Bose'. The speaker set-up has tweeters which are functional (unlike Bose systems in the 156).

A couple of problems though - when the traffic info comes on it comes on at level '20', which is bloody loud! There is no way of reducing the level of the traffic interrupts. According to his handbook this is intentional. As a reference, a comfortable level to listen to the radio is between around 4 and 7.

According to his handbook, with a Bose system there is no way of getting into the Equalizer settings, nor is there any Loudness function. However, he is able to do both of these things in his car!

This all sounds a bit confusing to me! Do we think the headunit may have been swapped or something? It seems like the headunit is driving the Bose system too hard - for the traffic info to come on at a default volume setting of '20', you would expect the normal listening setting to be around the same. Or maybe there is a tweakable on the rear of the radio unit?

Help, he'll think I'm a git if he can't get the radio sorted! :eek: :lol:
 

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Hi all,

my workmate has recently bought a used 159 (at my recommendation!) and is loving it! It's a 1.9JTDm Lusso saloon.

However, he is a sound man like me and is having a few problems with the stereo!

It's a 939-type radio (according to his paperwork) without Blue&Me. The speakers all round are unbranded, apart from the big one (subwoofer?) on the rear parcel shelf which is branded 'Bose'. The speaker set-up has tweeters which are functional (unlike Bose systems in the 156).

A couple of problems though - when the traffic info comes on it comes on at level '20', which is bloody loud! There is no way of reducing the level of the traffic interrupts. According to his handbook this is intentional. As a reference, a comfortable level to listen to the radio is between around 4 and 7.

According to his handbook, with a Bose system there is no way of getting into the Equalizer settings, nor is there any Loudness function. However, he is able to do both of these things in his car!

This all sounds a bit confusing to me! Do we think the headunit may have been swapped or something? It seems like the headunit is driving the Bose system too hard - for the traffic info to come on at a default volume setting of '20', you would expect the normal listening setting to be around the same. Or maybe there is a tweakable on the rear of the radio unit?

Help, he'll think I'm a git if he can't get the radio sorted! :eek: :lol:
Normally, the HU is set to "Bose mode" by supplying a 12V signal to pin A2 on the radio...
This normally disables the equaliser etc, and lowers the speaker outputs to line level..
It sounds as if this signal is not connected, if indeed it does have Bose. You could check this pin on the rear of the radio...

I don't know if this works on your HU, but for most radio's, you can adjust the volume for traffic announcements by just adjusting the volume during an active announcement....
 
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Thanks for the reply, JWQ.

I'd thought of that, but my friend says if he turns the radio down during a traffic announcement, the next announcement a bit later on is still coming up at 20. It seems 'locked in' to 20 as the default, whether you like it or not!

Yes, I am wondering if technically, he does have the Bose set-up. Only the rear shelf speaker (subwoofer?) is branded as such and the tweeters in the car are all real tweeters - this wasn't the case with the 156, Bose always used their little full-range drive units (no separate tweeters) with an added subwoofer. Maybe they actually use tweeters now though?
 
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PS he is going to contact the supplying garage, they are not an Alfa dealer as such, but a well-established specialist Alfa independent, hopefully they can shed some more light on this.
 

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re. the volume, you're right. From the manual:
<snip>
The volume with which the traffic bulletin
is transmitted varies depending on the listening
volume:
❒ listening volume below 20: traffic bulletin
volume = 20 (fixed value);
❒ listening volume above 20: traffic bulletin
volume = listening volume +1.
If the volume is changed during a traffic bulletin
the value is not shown on the display
and the new value is kept only for the bulletin
in progress.
<snip>
 

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Re. the Bose, like I said, if he does have it, it looks as if the indicator signal at the back of the HU (A2) is missing.....
 
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Discussion Starter #7
Thanks JWQ, he is going to remove the HU and have a quick butchers round the back to check that pin is being fed. If so, there is a fault and the supplying garage will have to sort.
 
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