147 stereo wiring
I have a bit of a confusing question to ask. (I've had a squint around the forum but can't find an answer)
A friend of mine has a 147 with the Bose stereo option. He's looking to change the head unit because the standard fit is broken, but he's unsure of the wiring.
Apparently the wiring into the back of the stereo is through a standard (ISO?) plug, but there is also a separate smaller coloured plug (yellow green & purple he thinks, but he likes a drink so it could be anything) which he doesn't know the function of. (and nor do I cos I know nowt about stereos)
He will probably replace the stereo with a Kenwood unit (yet to be purchased), but isn't sure if this extra plug will just plug straight into something or require adaption of some sort.
Can anyone shed any light on what this coloured plug does and how to deal with it. (so he can stop telling me about his wiring confusion and start telling me about a new stereo).