Topic

Hi, 
I believe you have identified the problem,  digital signals won't work on rca connections.

 The camera IS transmitting digital video via that fixed usb lead. 

Also the thumb drive and the TPMS also transmit digital signals so won't work in the rca plugs either!

The reversing camera is an analogue signal, which explains why that works on the rca socket.
 
I have decided to put the camera and the TPMS on the two usb connections and live without the additional memory.  So I have deleted a lot of unnecessary apps from the headunit hard drive(mainly a satnav app with an offline map)  to make space for a selection of my music collection.

Thanks for all your help,  Hope you enjoyed this problem as much as I did,😆 🤣 
 

Glad to be of help. Problems of this sort intrigues me in order to figure out what went wrong. I started blank just wanted to help, but we nailed it in the end.

Invalid or non-existent item ID.

I interrupt here with some trepidation as it sounds like my knowledge is less than those already involved!

It looks like this camera is some kind of dashcam. The illustrations show no connections at all but the spec says it needs 5v to run.  There is a slot for a microSD card.  My suspicion is that there is no video output and that the cable is solely for the 5v power.  The video is stored onto the microSD.

Apologies if I am completely missing the point and being dumb!

EDIT:  Ah, just seen the most recent comments as I had only seen to end of Page 2!  Maybe my contribution is redundant and a red herring 

Can't beat a red herring or two.