I have a volvo C70 2.4 GT 2000 with dolby digital surround sound with I think 11 speakers with an amplifier and electric aerial.
The unit I am replacing is a SC900. I am having problems getting a wiring diagram for the Dolby system which is causing me problems connecting the new head.
On the back of the SC900 Dolbyunit thereare 3 ISO connectors (one being the centre speaker and is a green connector) and 3 din connectors.
From the main SC900 ISO there is a
brown wire ?
red/black wire (power)
yellow/purple wire (battery)
2 x black wire(ground)
green/brown (orange) wire?
blue/white wire.(electric aerial)

there are currently no adapter harnesses for this Dolby system.
the speakers are connected by a 6 pin din connector.

My new head has the main ISO connector with
speaker wires
white, green, grey, purple,
other wires
red (power)
yellow (battery)
black (ground)
brown

2 x cables with ISO connectors, yellow amp connection, black ground wire.

I have had to cut the 6 pin din and connect the speaker wires the grey wire is on the centre pin which i think is the power to the amp. (this connects to a yellow lead on the RCA cables).

I cannot use the ISO connection so the wires will be soldered together.

HOPE THIS MAKES SENSE!!!!

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