@Skyliner33 I am sure you are right. I am no expert
Only need a USS4 if you are adding a inline amp , if running speakers straight from the headunit then just coding is requiredIt is my understanding based on advice received that an additional Audison USS4 unit is required to integrate rear speakers with fade
That’s only if you are using an Audison bit amplifier.
It can be yes, we can advise on the coding, or get someone with VCDs to do it for you.
Depends where you have added the speakers to and what head unit -Let em know and we can help
I think from memory the grilles and positioning are there. You just need to fit the speakers and run the speaker wire. The head unit will need coding for the fader to work.