Help!! Need to install an old sony head unit into a 91 S320
 

Hiya,

I was wondering if anyone can help me out. The garage I bought my car from removed the old Mercedes head unit and replaced it with a new JVC single CD/Radio head unit.

I have a pretty good Sony head unit which I'd prefer to use, but the JVC unit has a different wiring configuration than my old Sony. The garage has removed the standard ISO plug connections and installed a different connector and left remaining cables disconnected.

Any help would be gratefully appreciated!!!