Change VZ Tail Lights

[Holden_Bloke]

I have a vz executive and I brought some sv6 tail lights and the sockets where the bulbs sit don't fit. How do I fix this and if I need to get a new wiring loom where can I get one from?
Thanks

 

[Ozzie]

Pretty sure like 99% sure that the sv6 tail lights are smaller than executive so won't fit.
My stock VY Calais tail lights fit VZ executive but sv6 won't fit my Calais.

 

[Holden_Bloke]

The sv6 ones seem to fit but it's the wiring which is the problem