OE Camera retention with Alpine Head Unit - Loom to RCA

[MikeH460]

Hi Folks, Ive got a 2023 Custom Auto with Sync 2.5 & OE reversing camera...trying to fit an Alpine Halo head unit, using all the right bits for steering wheel controls & Fakra's to DIN/GPS etc but Im well & truly stumped with how to get the camera feed from the van loom into the RCA of the Alpine head unit. I know I have green/white - pin 18, blue/grey- pin 29 & black- pin 16 from the camera to the 32 pin at the Sync main unit but thats where I run out of road. I know everything works and signals etc are OK but I A) cant find a loom to link into the ISO oe B) know how to tap into the loom/32pin to add an RCA tail (I cant test the +/- with my meter & dont know what the black wire is, its not an earth)

First time in many moons a van/car/new hifi has beaten me but Ive run out of ideas & places to look...& have a van in bits on the drive!

Can anyone offer suggested solutions?

[MikeH460]

Resolved