Radio Help

[Nilly71]

I am trying to fix up an aux input into the head unit in my '92 Carina E, by disconnecting the CD player and using the 13 Pin round DIN pug on the back of the head unit for wiring up the aux input.

I just need the pinout for the connector on the back of the head unit. Any ideas?? When I unplug the cd player the head unit still works.

Toyota branded Head Unit model no. 58405

Toyota branded CD player model no. 74209 - appears to actually be a Matsu****a

Cheers

Mark