Just bought an Alhambra at auction and I'm trying to get the stereo up and running. Have manage to get the new head unit in a working (powered) but am struggling to identify the speaker wires.

As far as I can tell there are 2 sets of wires I cannot account for so far:

1. There is a set of wries that are bundled into two grey cables with a thin adapter on the end. Don't know if this is part of the orginal car's wiring or not. Could they be the speaker wires?
2. There's a set of wires (5 in all including a red, black, blue and two others) that are connected to a yellow adapter. As there are only five of these then I suspect they are not the speaker cables. (steering column head unit controls maybe?)

I presume there would be 8 in total but haven't located them yet

Anyone know the colours and can confirm there are eight? Front Left (+ and -) Front Right (+and-), Rear Left (+ and -) and Rear Right (+and-). And whether or not they sound like either of the above sets?

Any advice very appreciated

Andy