Problems with Bose in 156

[LaTiNo]

Hi there!

I've a problem with my Bose set in my 156.
I had removed the head-unit for 2 days and now the head-unit doesn't seem to 'detect' that it's connected to the amplifier and Sub. Normally with the Bose set connected correctly the head-unit seems to know this and the 'equalizer' function is not available. But now I DO have this equalizer and the sound-quality has dropped significantly.
Is it possible to 'program' the head-unit to detect the Bose-set correctly? Maybe with some code?

Thanks for ANY information

LaTiNo

ps. Could somebody translate this to German for me so I could post it in the German fora?

[JTD]

Hi,

i guess the circuit of the ISO-Plug is the same as in the 147... There must be a "Booster In" Pin or something else. If this pin is connected to +12V, the Radio indicates, that a Bose is connected and disables the equalizer and reduces the ouput volume to a line-out level.
Perhaps this pin is not connected any more to your unit.

Regards,
JTD

[LaTiNo]

Thanks for your tip
I'll try it today. I've my carkit connected to the radio so that may cause the problem. Weird thing is that it was connected before too and it worked then.....