BT Hands Free kit S60 install

[EWAC]

Originally Posted by mikealder

If it has an amp it should be under the drivers seat, motor your seat fully back or fully forwards and look under the seat, you should be able to see a bunch of grey twisted pair cables that come out from the amp. If your car doesn't have the amp the speaker wires will come out directly from the head unit, post back whether it's got an amp or not and I can post up the wiring information for you to follow. Also has your car got the centre speaker or not?



I have the wiring diagrams so working out which pin does what is quite easy, rather than referring to the diagrams in the car I simply created a "crib sheet" that makes sense to me which I followed to work out which cable needed to be connected to what.



I tagged the permanent 12V feed off the back of the stereo head unit, the switched 12V was also connected to the back of the head unit, to get the wires up under the centre console isn't too easy but if you send a self retracting steel ruler down from behind the head unit it will emerge from the area where the centre console side trim was removed, simply tape the wires to the rule then pull it back out and it will draw the wires up to where they can be connected.

Are you intending to fit an iO_play_2 kit like the one in the original post in this thread or something else? - Mike

hi mike, yes I am planning on fitting a ioplay 2 kit.
car has the amp under front seat, regarding center, I dont know but will assume yes as it has the dolby surround sound
thanks
ian

[mikealder]

Download the iO-Play_2 install guidelines as this is a good starter for ten, page 13 of the pdf shows you which pins of each connector do what function, you can download the manual by clicking Here :

From the power plug (shown as black connectors) you only need the following:

Pin 1 Red Ignition switched +12V (Violet coloured wire going in to back of headunit pin 2)

Pin 4 Yellow Permanent +12V (Red thick wire going in to back of headunit pin 1)

Pin 8 Black 0V, easy to connect to bolt securing the Volvo Amplifier.

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From the speaker ISO connector (shown as a brown pair of plugs):

Fig 11 which is the Male Speaker ISO plug, these wires are connected to the wires going to the speakers.

Fig 12 which is the female Speaker ISO plug, these wires are connected to the wires going back to the amplifier.

The speaker connector on the amp has pin numbers embossed in to the plastic of the connector, it is wired as follows:

LH R+ pin 1
LH R- pin 2

RH F+ pin 5
RH F- pin 6

LH F+ pin 7
LH F- pin 8

RH R+ pin 11
RH R- pin 12

You need to match these up to the signal wire names and colours from the iO-Play diagram, only cut one pair of twisted speaker cables at any one time then complete all connections from the four resultant wires BEFORE moving on to the next pair of speaker wires.

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If you have the center speaker you will need a five pin accessory relay such as This one. Use this to disable the center speaker when the iO unit is active.

The pink and brown wires from the iO-Play2 cable harness are connected together, this pair of wires need connecting to pin 86 of the relay.

Pin 85 of the relay needs to go to an ignition switch controlled 12V source, either the violet wire on pin 2 of the connector going to the rear of the headunit of connect it to the center pin of the ciggy lighter socket.

Cut the grey/ red wire going to pin 10 of the headunit connector, this wire feeds the center speaker, connect the grey/red wire going to the headunit to pin 30 and the grey/red wire going to the speaker connects to pin 87a.

Wrap the connection pins of the relay with PVC tape as there will be one unwired pin sticking out from the relay body which needs insulating, bury the relay behind the dash, I used the space to the left of the glovebox which is easy to get at.

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If I was going to do this again I would probably motor the drivers seat back to fully upright then tip the seat back rather than trying to remove it as they are bloody heavy and far from easy to extract/ refit, you will still need to disconnect the battery and electrical connections to the drivers seat but access should be fine with the seat tipped back - Mike