Thanks for this great guide. I have just replaced the factory TAS300 with a Pioneer SPH-DA230DAB and installed the same Antenna Adapter as you have but i am not getting any FM reception. Do i need to link the blue lead in somewhere and if so where do i do this please.
**** RESOLVED ****
I connected the blue wire from the antenna adapter to the blue/white wire from the loom supplied with the new head unit after watching a video on Youtube, however the blue/white wire was labeled Remote Control so i tried it and it worked.
I just need a DAB antenna now and the job is complete.