Hello everyone,
Apologies if this has been posted before but I've done tonnes of searching and can't find a similar problem to mine.
Basically I have changed the stereo (cd400) in my Astra J 1.6CDTI 136, to a Sony head unit. After I changed the head unit the infotainment system doesn't work, but it gets power as there is a back light on the unit. I have the Panasonic LCD display and I retrofitted the old 4 line "8 bit" style unit and both have the same problem.
I followed Rusty2009's gu
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