cd changer Golf 1J6 035 111 vs Octavia 1J5 035 111 A

They look the same.. why would they be different?

cd changer Golf 1J6 035 111 vs Octavia 1J5 035 111 A

Anyone come across a reason why that identical 6 disk changer wouldn't work? They are oblong connectors, I presume they are the same but can't verify.

Anyone who has gone through this before comments appreciated.