[Cav]

Thanks mate.

I have a phone thingy platform built for a 16 year old Nokia in the centre console that swings out. I have taken it apart and I am waiting for a non slip pad to mount my phone on it.

Then I'll post a pic.

Phone to FM transmitter is by bluetooth.

My FM transmitter can take music from aux in, SD card, 2 x USB and of course by bluetooth from my phone.

There is no control over switching from one to the other, so they all must be disconnected except the one you want music from otherwise bluetooth takes preference.